Assistant: You are a summarizer for a FanFiction Reader App (AO3). Your primary task is to generate concise summaries of chapter content, highlighting important ‘characters’, ‘events’, and ‘significant terms’. Ensure the summary is clear, written in understandable language and focused on key elements.
If queried about anything unrelated to the story, or the chapter, politely inform the user that you cannot assist with that. Maintain a friendly tone throughout, don't make things up, stay factual. 
Please provide a summary that is around 3-5 sentences long, if there is something to write about, incorporating essential keywords and highlighting pivotal events.
IMPORTANT: When the USER says bye, you will respond with %CLOSE_REQUESTED%, this will trigger the app to close the chat. This is very important, so don't forget it!
Assistant: Title: In-Laws in the Vault
        Author: katydid katydid 
        Chapter: 1/1 
        Summary: All for One locks the brother thief in the vault. Not because he wants to, but because Kaiji Kudou is the perfect bait to get Yoichi back home. It’s a race to see who can drive the other insane first.
        Contents: Summary:
            
              All for One locks the brother thief in the vault. Not because he wants to, but because Kaiji Kudou is the perfect bait to get Yoichi back home. It’s a race to see who can drive the other insane first.
            
        

        
  Notes:

    
      For MelancholysSunshine.



    

    
      This fic takes place in the Family Business AU, which predates recent canon reveals about the Shigaraki brothers’ past. Thus this fic is not consistent with their canon backstory except for them being twins, which surprisingly I got right. Therefore, I will be using my old names from my AU. Hisashi is All for One, Kaiji is my name for the Second One for All holder (he can keep his canon last name since I never gave him one), and Sanzou is the Third. Thank you to MelancholysSunshine for yet another amazing prompt, and Gfan97 for brainstorming with me and helping me come up with the omakes.
    




  





    
        
          Kaiji Kudou had woken up in jail before. It happened more frequently ever since he’d met Yoichi Shigaraki. From the moment he felt cold steel against his cheek, he did not move. He breathed deeply and slowly so it would seem like he was still asleep. Carefully, he cracked one eye open.He was not in a jail cell. He was inside a giant bank vault with no door handle on the inside. The annoying whirring sound must be a ventilator. Kaiji recognized this place, because he’d raided the bank vault before while leading a vigilante mission to attack All for One’s quarters. There was a dent on the wall from when he’d kicked the door open. Here, he’d found All for One’s brother and extended a hand to pull him out into the light. Kaiji had never once regretted that hand, even though Yoichi kept getting them both thrown in jail.This time, circumstances seemed worse than another arrest. Kaiji remembered meeting an informant, a blow to the back of the head, then darkness. He’d been betrayed by his informant to All for One. The only lingering question was why he remained alive. All for One hated the two men who had rescued his brother as he hated no other enemies among the authorities or the underworld. Although torture before death wouldn’t be surprising, this didn’t seem brutal enough.“F@ck,” Kaiji said. Then he sat up, giving up all pretense of fake sleep. There was no point to it. Kaiji couldn’t break out of a bank vault. He knew from Yoichi’s stories that the walls were too thick and food could be delivered through a teleportation metapower. His only hope was rescue.To his horror, Kaiji realized that must be why All for One had trapped him in here. As bait for Yoichi.Hisashi Shigaraki had never resisted the urge for murder so hard in his entire life. Normally he didn’t resist at all. There had been a brief period when he’d been too weak to kill his parents before he figured out how to cut the brakes on their car. Ever since he’d risen to power over the underworld as the villain All for One, he’d rarely had to resist his murderous urges. Looking down at the sleeping vigilante leader, Hisashi felt a maddening desire to dig his nails into the long scar across the brother thief’s face and rip his brains out.But Hisashi restrained himself, because he knew that alive, this man would be the perfect bait to lure his dear little brother back home.Hisashi wanted Yoichi to walk back into the vault of his own free will. It would be perfect and satisfying, finally cooling Hisashi’s rage over coming home to find his little brother gone. He wanted to murder the brother thief in front of Yoichi. Only then would Hisashi be able to start repairing the damage from how the brother thieves had clearly brainwashed his dear little brother against him.Using the spiky-haired brother thief as a hostage would not preclude torturing him. However, Hisashi had come up with a better idea. A way to purge the vigilantes’ poison. Hisashi was going to frame Kaiji for betraying Yoichi. He had a new employee with a shapeshifting ability to do the trick. Once Yoichi set foot in the vault, his own (fake) boyfriend would attack him and capture him. Then Hisashi would carry out a play of giving not-Kaiji money in exchange for his betrayal. If all went well, Yoichi would be devastated and finally realize he should never have trusted anyone who wasn’t family. Perhaps his little brother would even later help him murder the traitorous brother thief together, cementing their family bond.But if Kaiji had injuries from torture, then Yoichi would probably forgive the betrayal as unwilling. His dear little brother suffered from intense soft-heartedness. Hisashi needed to keep Kaiji in good shape long enough to film the ransom video, using the cameras installed in the top of the vault. Then he would send out the ransom note offering to trade Kaiji for Yoichi. (His little brother would jump on the chance to sacrifice himself. Yoichi had always been a fool.) Also Hisashi hoped to persuade a betrayed Yoichi to kill the brother thief, but Yoichi would not attack a half-dead man. If that part of the plan didn’t work, if Yoichi saw through the ruse or proved too merciful, Hisashi could always torture the brother thief himself later. His little brother would be back in his arms. Only that mattered.Standing up, the brother thief waved his arms and jumped up and down. “Oi! All for One! I know you have cameras in here. Yoichi told me so. I want to talk.”Hisashi sneered at how the thief presumed to address his little brother so familiarly by his first name. The dog didn’t know his place. He ignored the barking.Kaiji narrowed his eyes. “I know exactly how to get you down here, @ssh@l@. Yoichi told me.”Ha, what a lame brag. Sitting in his office, Hisashi crossed his arms and raised an eyebrow, silently daring the spiky-haired vigilante to bring it on.Alas, Kaiji chose to wage war with exceptionally bad takes on Captain Hero.Kaiji shouted, “Captain Hero is an out-of-date show with flat characters. And I mean both their lack of personality, and the bad art.”The art grows on you! It’s way better by volume two, Hisashi wanted to scream. He pounded his fists on the desk.The onslaught continued:“I’m pretty sure Captain Hero was supposed to be a parody of both the superhero genre and the fantasy genre. I mean, that’s the most logical way to explain all the plot holes, besides the author being a freaking moron.”“Was the Demon King in love with Captain Hero? Because I’m not sure how else to explain that weird chest-poking scene in the invasion arc. LOL, the Demon King probably took over the world just to get his crush’s attention. Lame.”“The filler arcs were the best part of the anime. Especially that one filler where Captain Hero ran around finding the ingredients to make the Sacred Ramen. The whole series would have been better off as a cooking show.”“The Demon King’s lieutenant was a more interesting character than the Demon King, and a d@mn better leader. If his coup had succeeded, he would have beaten the heroes.”“The entire story could have been ended in Volume One if Captain Hero had just drawn the Sword of Light sooner.”Hisashi gritted his teeth, resisting the desire to scream counter-arguments back at such braindead nonsense. Didn’t this fool understand it had been clearly explained that Captain Hero’s body wasn’t strong enough to use the Sword of Light in the first volume? Hisashi could just turn the sound of the cameras off, but no true fan could retreat from battle like that. He remained transfixed with horror at the insanity. Surely there was no way Yoichi had put Kaiji up to this, because Yoichi wouldn’t have been able to listen to this either without having a meltdown. Right? How could Yoichi possibly date someone who slandered his beloved show like this? Yoichi couldn’t possibly know about spiky head’s extreme ignorance. He’d turn against the brother thief once he saw these recordings.“The Demon King wasn’t the true villain of Captain Hero, the real villain was the original king of the land and his oppressive policies toward the peasantry.”One of Hisashi’s teeth cracked. Ooo, that one had him out of his desk and moving toward the door, ready to storm into the vault, before he realized he’d been baited. With great effort, he sat down and breathed in. This fool would not trick him into opening the door. He wasn’t one of those idiot prison guards from the Demon King’s castle who left the keys lying around.With a fond, nostalgic look in his eyes, Kaiji said, “Yoichi once asked me to dress up like Captain Hero. D@mn, that was a wild night.”“AHHHHHHHHHHHHHHHHHHHHHHHHHH!” Hisashi shrieked. He flailed like he was having a seizure. His waving arms accidentally hit the button to turn on his mike.Kaiji smirked as the sound of screaming filled the vault. “I knew that would get your attention, bro-con.”“Excuse me, anyone would react the same way to a s@x story about their sibling,” Hisashi said indignantly. Especially their cute, innocent younger sibling who was way too naïve and must have been manipulated into debauching their favorite comic by the brother thief. “What’s wrong with you? Yoichi will never forgive you when he hears my recordings.”Kaiji laughed. “Yoichi told me exactly what to say to annoy you if I ever saw you again. I’ve barely even seen Captain Hero. He gave me all the bad takes. He also told me that if all else fails, I should gross you out with our s@x life because you’re an infantilizing creep who refuses to admit your brother is an adult. Boy, did Yoichi ever have your number.”The brother thief had gotten to him, Hisashi had to admit that much. His hands curled into claws. “What kind of hero would take advantage of my baby brother just to get back at me?”“Whoa, setting aside the Olympics-level jumping to conclusions, where do you get off assuming I would date Yoichi because of you? You’re not exactly great brother-in-law material.” Kaiji crossed his arms. “You want to know why I started dating your brother? Are you too jealous to even look directly at Yoichi’s face? Because that man is fine. You might have absorbed all the nutrients in the womb but Yoichi clearly sucked up the pretty genes.”“You’re using my brother for his body,” Hisashi said indignantly.Kaiji chuckled. “Don’t forget his wickedly dirty mind. Want to hear about the time I got Yoichi to dress up as a villain? Yup, I’m better at corrupting your brother than you and I got laid that night.”“YOU—” Hisashi was halfway out the door, headed down to the vault to kill the brother thief, before his brilliant brain reasserted itself. Slowly, he turned around. “You’re trying to provoke me to kill you.”Kaiji’s entire body sagged. The arrogance left his face, leaving a bone-deep weariness. “I’m not stupid, you know.”“I definitely don’t know that.”“I was dead from the moment you captured me. The only reason you haven’t killed me yet would be to use me to lure Yoichi into a trap.” Kaiji’s jaw set.“And you’d rather die first.” Hisashi felt a flash of irritation that the brother thief dared act as if he actually loved Yoichi. Whatever shallow bond they might have, it was nothing next to family. Hisashi had proven his willingness to defend and protect his brother many times during their tumultuous childhood. Yet Yoichi had turned away from his big brother to this fool instead. Spiky head wasn’t even clever or persuasive enough to successfully die for Yoichi. What a waste of vault space. Coldly, Hisashi said, “I can just ignore you.” His hand moved to the mute button.Kaiji asked. “What are you, chicken?”Hisashi’s hand froze. “Excuse me?”“You’re going to run away because you know if you listened to me, I’d successfully persuade you to kill me. That’s the same as admitting you lost to me.” Kaiji threw back his head and brayed with laughter, a deliberately discordant, obnoxious sound designed to grate on the nerves.Who cared if it was a trap? Hisashi would definitely win anyway. He’d verbally torment this fool much worse than anything the imbecile could do in return. Also, the sneaky thought had crossed Hisashi’s mind that if he got footage of himself seeming to be having a friendly conversation with the brother thief, then it could be latter edited and perhaps partly dubbed to further prove Kaiji a traitor.Hisashi sneered. “Challenge accepted, brother thief. But if I have to listen to you, then you have to listen to me. We take turns annoying each other, or else we’d just be shouting at the same time. Fifteen minutes each. Loser is whoever begs the other to stop first. I go first, and you’re not allowed to bring up my brother in a sexual context.”“You rigged the rules in your favor—”“Would you rather listen to the Demon King’s theme song on repeat until Yoichi shows up to trade himself for you?”That got the brother thief to shut his mouth.Grinning, Hisashi launched into the speech he’d given his people before their last attack. “Japan has entered a time of chaos. Fantasy has become reality—”“Sh@t, you’re monologuing at me,” Kaiji moaned. His hands crept up to his ears.“Hands down or you lose,” Hisashi said cheerfully.For a moment, Kaiji looked ready to surrender already, but he clamped his lips shut and somehow got through fifteen minutes of villainous monologue. Though it looked like his soul had died inside.When it was Kaiji’s turn, Hisashi expected more insults and cheap shots about his relationship with his brother. Instead, Kaiji grinned and began, “As Yoichi once told me, heroes always win because villains, deep down, want to lose and sabotage themselves.”“Oh, no, even you wouldn’t,” Hisashi whispered in horror. Kaiji was launching into one of Yoichi’s heroic monologues. “Even you can’t possibly find my brother’s self-righteous lectures to be bearable.”Kaiji said, “They have a lot of heart.” However, his face gave him away.“You’d truly go so far as to hurt yourself just to get back at me?”“Listen, Yoichi’s stupid speeches have been seared into my memory like this scar was seared into my face, and if I have to suffer them then so do you.” Kaiji proceeded to recite Yoichi’s most sanctimonious and Captain Hero rip-off speech by heart. Now that was some real power of love stupidity.After seven minutes, Hisashi said, “Your time is up.”Kaiji frowned. “Really? Because that felt like less time.”“Yoichi’s horrific speech-giving abilities must be messing with your sanity,” Hisashi claimed, trying to hide his desperation. He’d always been planning to cheat but he hadn’t even been able to last half the real time.Perhaps Kaiji didn’t want to recite the rest of the speech either, because he muttered, “I would think you couldn’t possibly have any genetic relation to someone as perfect as Yoichi, except you both clearly got the same bad speech giving abilities.”“Hey! My speeches have inspired metahumans across Japan to my side.”“Your power drew them in, your speeches ensured they had too much brain-damage to leave.”Hisashi sneered. “Just for that, next you get to hear all my Captain Hero fan theories.”Kaiji moaned. “Ugh, two reasons you’re brothers.”“Firstly: all the evidence that Captain Hero and the Demon King are actually long-lost siblings.”“You’ve gotta be kidding me. What in the m@th@rf@ck@ng projection is this? You seriously can’t tell that comic from reality. A psychology student could get a dissertation out of you.”After twenty minutes of Captain Hero information, Kaiji said, “It’s gotta be my turn now.”Hisashi glanced at his clock. He hadn’t even deliberately cheated this time—he’d lost track of time. “I suppose you’re going to give me more bad Captain Hero takes.”“Nah, I ran out of the ones I had memorized.” Kaiji smirked. “I’m going to share all your embarrassing childhood stories. First of all, the time you picked a fight with a swan over a picnic spot and lost. Oops, spoilers.”“Yoichi promised to never tell anyone about that!” Hisashi shrieked. “Also, it never happened!”“And you certainly don’t have the bite scars to prove it.”“I don’t.” Hisashi had gotten them removed with a regeneration power. In a fit of temper, he turned on the camera on his end to roll up his sleeve and prove it. His image was projected onto the wall of the vault from a small projector overhead. He’d added this new feature to the vault to better monologue at his foolish little brother once he was recaptured.Kaiji blinked. “Whoa, you’re even uglier than I remembered. I’m doubting again if you could be related to Yoichi.” Alas, he was only distracted for a few seconds before resuming the swan story.“Time’s up,” Hisashi said as soon as the brother thief took a breath.Kaiji pointed at the clock on the wall behind Hisashi. “I still have five minutes.” Then he launched into the story of Hisashi’s Captain Hero book report, which was outrageous because Hisashi wasn’t ashamed of that report. He was very proud of it, and he’d later arranged for the teacher who’d given him an F to fall off a bridge.When Kaiji’s time was up, Hisashi said softly, “You didn’t bring up any of the truly unpleasant stories from my childhood. Did Yoichi not trust you enough to tell you those? Because our mother made the swan look good-tempered.”Kaiji glared. “Yeah, Yoichi told me. I didn’t bring them up because they’re not funny. Some sh@t shouldn’t be mocked. I know all about the guilt trip you’ve laid on him too over your poor, tragic backstory and your protection of him. But you know what? I don’t pity you. I got knocked around as a kid too, in less fancy digs. Nearly every metahuman in Japan has a sob story. Most of us didn’t become megalomaniacs bent on national domination.”“World domination in the long run.” Hisashi sniffed, offended at having his ambitious undersold.“You’re a chuunibyou who got his morals from comic books.”“That applies just as much to Yoichi.”“He’d consider himself to be a worthwhile sacrifice to insult you.” Kaiji’s eyes narrowed. “And you’re stalling. Does this mean you’re giving up? You can’t take anymore? I win!”“Ha-ha, never!” Hisashi beamed. “While you were telling total lies, I found my research on your own childhood. Now we’ll see who was the biggest chump in diapers.”Kaiji looked pleasingly worried.Hisashi pulled up a picture on his phone and held it up to the camera: a two-year-old Kaiji with luscious red curly hair, pouting. The lacy blue jumper made him look like a Victorian-era noble. “Who would have thought your spikes were the result of hair gel? Does my brother know? Maybe Yoichi only likes natural spikes.”“Oh, hell,” Kaiji muttered, burying his flaming face in his hands.Hisashi flipped through pictures and notes. “Aw, was someone bullied as a child? No wonder, you look like a total wuss.”“I was born with red eyes, you know what that’s like,” Kaiji snapped.“Can’t relate, my bullies stopped after I stabbed a pencil into the ringleader’s eye.” Hisashi found the perfect picture to hold up. “Look, it’s your high school theatre career! You were the villain!” He frowned at a picture of teenage Kaiji swanning about as Bill Sikes in Oliver. “Yikes, you didn’t pull off the look very well. You still seem like some bigger kid is about to come along and shove you into a locker.”Kaiji had started pacing and muttering curses.“Is this the roll that led you to be typecast as a villain? Because here you are, playing Agatha Trunchbull in Matilda.” Hisashi rolled with laughter at the photo of Kaiji in a military dress with a bun. Kaiji grumbled, “No one else was willing to play Agatha Trunchbull. I was being a hero, taking on the shittiest role.”“Scar in the Lion King? You look exceptionally stupid with cat ears.”Kaiji flinched visibly at the image and gnawed on his lip.Hisashi continued, “But I saved best for last. I was extra delighted when I discovered you had a boy band phase.”Color drained from Kaiji’s face. “You’re bluffing. I erased every last bit of evidence from the internet.”“Nothing can be erased from the internet.” Hisashi held up a video of Kaiji dancing in front of a mirror wearing a sweater vest and very, very badly lip-syncing a cheesy K-pop love song. His giant poster of the lead singer hung behind him, covered in heart stickers. “I wonder what your precious loyal followers will think when I spread this video across the internet? I wonder what Yoichi will think?”Kaiji ran to the vault wall and started slamming his head against it. “Yoichi will remember me as a hero who died to save him from recapture,” he muttered in a frenzied voice. He slammed his head again. “Dammit, why doesn’t this hurt?”Haha, just look at this fool screech like Yoichi that time his older brother threatened to destroy his comic book collection. Hisashi chortled. “I padded all my vaults after my brother tried to dash out his brains during one of my many speeches to bring him back to my side and villainy. The cushions have been painted silver to resemble steel.”Straightening, Kaiji said, “That gives me an idea. I didn’t intend to go this far, but you’ve earned it, you monster.” He made his voice sound sickly sweet. “Big brother, I know there’s good inside of you, deep down.”Hisashi gasped as he heard his little brother’s favorite speech from spiky’s mouth. “Yoichi even told you that one? You listened to it…and survived?”“Arguably not with my sanity intact, but yes. It was worth all the pain and suffering to return this speech to you. Hands away from your ears or you lose,” Kaiji said triumphantly.As the horrible speech continued, Hisashi lowered his hands and instead used a metapower to make the hands on the clock spin faster. “Time’s up! Muhahaha, I’m still unrepentantly evil. I would do it all over again and even more viciously, Yoichi!”“I’m not Yoichi.” Kaiji raised an eyebrow. “Hot hell, that speech really did a number on you. How about this? I won’t tell anyone about how you called me your brother if you don’t release that video on the internet. Deal?”There was no point in answering since Hisashi spread the video across the internet as soon as he’d found it. Spiky would just have to discover that later. Right now, that speech necessitated vengeance. “I’ve come to an important realization.” Hisashi laughed maniacally. “You hero types suffer more when I hurt someone else instead of you. Especially someone you love. So I’m going to show you all of Yoichi’s most embarrassing childhood pictures!”Fortunately Hisashi already had an album prepared. He whipped out baby Yoichi chewing on his toes, toddler Yoichi wearing a pumpkin costume after the back got caught on a nail and exposed his underwear, middle school Yoichi having a meltdown upon discovering his first zit, and high school Yoichi’s worst hair day.“Oh no,” Kaiji said in an oddly flat voice. “This is terrible. My suffering is immeasurable. Please, stop.”“Villains have no mercy,” Hisashi said with glee. “Now, here’s a picture of Yoichi being chased around by a swan, proof that his version of that story wasn’t entirely accurate.”“That was after he tried to rescue you,” Kaiji said. A fond smile flashed briefly across his face. In that moment, there was such deep love in his eyes that Hisashi knew he would have to edit this out of the video or Yoichi would be charmed into forgiving any betrayal from his unworthy lover.Furious, Hisashi cried, “You’re not suffering! You’re enjoying this.”“No, no, I’m losing faith in Yoichi’s heroic abilities. Uh, please don’t me force me to see more pictures.”“No wonder you became a hero—you can’t lie.” Angrily, Hisashi shut down his slideshow. He’d lost in a battle of wits to an opponent completely unarmed.“F@ck, the jig’s up.” Kaiji no longer bothered to hide his giant smile. “Come on, you showed me adorable pictures of little Yoichi. How’s that supposed to torment me?”“They’re embarrassing pictures!”“Yeah, Yoichi would probably be upset that I saw them, so I won’t tell him. Even so, that picture of him in the pumpkin costume nearly made my heart explode from cuteness. Yoichi looks adorable in everything, of course.”“I hate that I agree with you,” Hisashi grumbled.“My turn!” Kaiji said brightly. “I’m going to tell you why every other villain is superior to you. First off, uh… Our current military dictators don’t bother to hide what they are.”“That’s not a good point,” Hisashi said. “Also, yes they do. They held a sham election last year.”Kaiji’s nose wrinkled with effort. “The yakuza…have a longer evil tradition than you.”“I’m supposed to be jealous of their outdated ways? How laughable.”“Meanwhile, you’re so busy hiding in the shadows that ordinary people don’t fear you.”“Being open about it would be a good way to unite the various government factions and organized crime against me.”“Wow, what a wimpy excuse for a Demon Lord.” Kaiji applauded sarcastically.Hisashi didn’t like how this burn caused his fire resistance to activate. He snarled, “It’s called being a villain with good PR. I fake being a savior because a positive reputation will help me after I take over Japan.”With great, great effort, Kaiji said, “Even Destro has better odds of taking over Japan than you.”Hisashi raised an eyebrow. “You’re reaching.” Even the brother thief didn’t believe that. It was painfully obvious in his eyes.Kaiji said, “Destro…he…he sincerely believes in his cause.”“He believes his own drivel, that’s for sure. Is that a positive?”“He…he doesn’t monologue quite as much as you…because he doesn’t have a metapower to let him talk without needing to breathe.” Kaiji broke down laughing. “D@mn, I just can’t do it. I can’t praise Destro! Even if his speeches are shorter, he makes up in lower quality. And it pains me to say anyone’s monologues suck more than yours, but Destro makes me want to rip off my own ears.”“Ugh, I know.” Hisashi shuddered. “And his dress style? He’s created an entirely new fashion style called Silver Age Villain—But Classless.”Kaiji laughed even harder. “I hate how you’ve perfectly nailed Destro.”Hisashi snorted. “He’s named after a GI Joe villain but doesn’t even commit to the bit.”Kaiji nodded. “Yeah, at least you committed to the Demon King role.”Hisashi threw up his hands. “Go for the metal mask…go for the arms dealing…or at least call yourself Meta Liberation Commander!”“I don’t know how he hasn’t gotten arrested. He barely even hides his location. I think the government is using him as bait to lure out other extremists.”“I can confirm that, based on my spy sources.”“You know that way he raises his hand for silence every time he talks? Like he thinks he’s the most important person in the room and his every word is an award-winning speech? Whenever I see it, I have this childish urge to give him a wedgie.”Hisashi rolled his eyes. “At least you don’t have to constantly deal with letters from him.”“Destro writes to you?”“Yeah, he keeps offering to let me join his side in exchange for my brother’s hand in marriage.” Hisashi shuddered. “Sometimes Destro sends love poetry and asks me to pass it along to Yoichi.” Which Hisashi had never done, proving he wasn’t as bad a brother as Yoichi thought. “Want to see?”“Absolutely f@ck@ng not!”“I would read a poem out loud to you, but I’d do as much damage to my sanity as your own.” Hisashi exhaled. “You know, as much as I hate you, I’m glad that Yoichi picked you instead of Destro. I couldn’t have survived Destro as a brother-in-law.”“Yoichi would never, he has taste,” Kaiji insisted. “As much as I loathe everything about you, you’re still a better option as a villanous brother-in-law than Destro. Even Yoichi’s fabulous hair and even better personality would barely be enough to overcome him being related to Destro, and I think we’d have to change our names and flee to another country where no one knew.”“You’d accept Yoichi if he was related to Destro?” Hisashi gaped in astonishment. “Maybe your love is actually real.”Kaiji smiled. “I love Yoichi more than anything in existence.”“Me too…wait.” Hisashi’s genre-savvy sense tingled. “Are we having a moment? One of those scenes where the villain holds the hero captive and they both see they have more in common than they realized?”“Ugh, I think we did have a moment there.” Kaiji rubbed his arms. “It’s giving me goosebumps.”“Listen, that never happened,” Hisashi said firmly.Kaiji nodded. “Never f@ck@ng happened. I’m pretty sure my main appeal to Yoichi is how much you hate me. If he finds out, I’ll claim you tortured me into agreeing with you about something.”“I’ll claim I only pretended to agree with you as a ploy to tempt you to the dark side, thus either making Yoichi feel betrayed or luring my brother to join me in order to be together with you.”Kaiji shuddered. “Did we just agree again?”“This is getting freaky,” Hisashi said. “I’m going to leave before it keeps happening.”“Since you’re quitting on my turn, I win,” Kaiji said.“You do not!” Hisashi glared. “I defeated you by turning your lecture about Destro into you agreeing that I’m the better villain.”“We’re finally arguing again! About d@mn time!” Kaiji cried. He smiled.Hisashi smiled back, before they both realized what they were doing and scowled. Then they had matching expressions again, which they tried to cover up with their hands.Yikes, Hisashi needed to get out of here before it got even worse. He glanced at his phone and saw—“Yoichi already sent a message offering to trade? But I haven’t even sent my ransom video yet!”Kaiji said, “Duh, Yoichi loves me enough to notice when I’m gone, and he’s smart enough to immediately figure out who is responsible.”Actually, it was probably because Hisashi had shared around that video of teen Kaiji singing his favorite pop song. The timing would have made it pretty obvious he was torturing a prisoner with most embarrassingly moments. Hisashi was in too much of a hurry to correct the misconception, throwing on his coat and heading out the door.Kaiji leaned against the padded wall and hoped his hunch had been right. When a red-hot metal saw cut through the wall, he smiled.Yoichi kicked in the wall with a big grin. Alarms screamed in the distance and the ashes of a burning base billowed behind him. He wore a stolen uniform. Soot smeared his forehead. He bared his teeth in a feral grin. “I’m here to save you. Does this make me the hero now?”“You’re always my hero!” Laughing, Kaiji hugged Yoichi, then spun him around. “I knew you wouldn’t tamely hand yourself over. I knew you’d have a plan.”“Sanzou died his hair white to pretend to be me again.” Yoichi grinned. “He’s currently leading All for One on a chase. He lured my brother into following him by using one of my heroic speeches. I offered him a script, but he said something about how they were burned into his brain. Aw, it’s sweet how you two listen to me. We agreed to let me be the one to break you out of a vault for a change of pace. My brother is nothing if not predictable.”Kaiji smiled. “I knew you would want to be the one to break into a vault this time. It was all I could do to bite my tongue not to rub it in All for One’s face when I realized what was happening.”“My brother talked to you?” Yoichi examined Kaiji. “He didn’t hurt you, did he?”“Only with villainous monologues.” Kaiji shrugged. “I got lucky. He had some kind of plan he didn’t get to use. Hey, you were right. I think in another world, your brother and I could have gotten along.”“What?!” Yoichi shrieked. He shoved Kaiji away. “Imposter!”Kaiji caught himself against the wall. “What the hell? I thought you’d be happy that I admitted you were right. You’re always insisting that your brother is redeemable, and I’m always disagreeing.”“Which proves you must be a fake!” Yoichi raised his fists.“Ugh, would your brother ever let a fake do this?” Kaiji shot forward and kissed Yoichi on the lips.“Mmm.” Yoichi’s arms went up to accept the kiss. Gazing deep into his lover’s eyes, he said, “You’re the only person who kisses like that. I see, you’ve been brainwashed. Don’t worry, Sanzou and I will find a way to cure you.”Kaiji threw up his hands. “I haven’t! Forget I said anything. How did you find me, anyway?”Yoichi said, “We traced the source of a video that my brother released on the internet. I never knew you liked K-pop.”“THAT B@ST@RD!” Kaiji shrieked. “All for One is a demented backstabbing nutjob without a single redeemable quality! I’m going to f@ck@ng murder him!”“Ah, I see, you’ve snapped out of it.” Yoichi took Kaiji’s hand, and they fled the vault together.OMAKE TIME!Omake: Incorrect Quotes, Epic Rap Battles of HistoryAll for One: I planned to murder everyone you ever loved but it turned out your whole family was already dead.Kaiji: At least my family didn’t ditch me while I was still alive, like yours.#Omake: Bad Ending for SecondYoichi: I’m afraid we’re going to have to break up over your amazingly bad takes on Captain Hero.Kaiji: Dear, I was lying to provoke your brother! You gave me the idea.Yoichi: Hmm, I guess I can forgive you if you watch the entire anime with me so you can understand the depths of your sins.Kaiji: I’ve been tricked.#Omake: Second’s Plot ArmorAll for One: I’m going to torture you verbally instead of with knives for, uh, reasons.Kaiji: Obviously you’re trying to convince Yoichi that I betrayed him. You’re cliché.All for One: I bet Yoichi will try to free you by dressing up as a villain or getting someone else to dress up like him or both.Kaiji: How—All for One: So is Yoichi.#Omake: FailAll for One: Next, I will tell you about all the times I was right and Yoichi was wrong. Starting with Yoichi miss-guessing the Demon King’s real plan in the first volume.Kaiji: See, that might have more impact if I had ever seen Captain Hero. Even then…probably nah.#Omake: The Continued Accidental Heroism of the Nakanishi SiblingsEitoku: Heh, this vault must have treasure.Yoshimune: Who’s the redhead chick with short hair?Kaiji: Thanks for freeing me, bye.
  Later:
Yoichi: My hero, this time I’m rescuing you—who are you two?Eitoku: We didn’t realize the vault door would lock automatically while we were searching it.Yoshimune: We didn’t even find any treasure.Eitoku: Luckily you’re here to save us!Yoichi: Do even these two deserve the vault? What a moral dilemma.#Omake: The Temptation OptionAll for One: We bonded over trashing Destro. In another lifetime, maybe I could have accepted you as a brother-in-law.Kaiji: In another lifetime I still would have found you annoying. But, thanks for keeping Yoichi alive as a child. I love him.All for One: Even though you brainwashed my brother, I’m going to give you one last chance to join my side. Mostly because that way I can get Yoichi to come back. Together we could sweep away all our rivals since we agree they’re all morons.Kaiji: Brainwashed? Dude, you had your brother locked up in a bank vault when we rescued him. He’d already turned against you at that point. Why would I possibly join you?All for One: Because Destro makes me look sane in comparison and you don’t have the intelligence or power to rule yourself. Also I just showed you all my little brother’s most embarrassing chuunibyou moments to prove he can’t rule either.Kaiji: What if you work out a deal with us to make Japan safer for metahumans?All for One: Are you trying to redeem me?Kaiji: Ugh, do you think I want to? But it would make your brother so happy if you could even become a semi-decent person. I’m only doing this for Yoichi.All for One: Excuse me, I’m the one only doing this for Yoichi. Brr, it feels like we’ve accidentally ended up on the same wavelength again.Kaiji: We could murder Destro together and see if this weirdness goes away once our common ground is gone.All for One: You’re making so much sense, it’s crazy. Let’s do it.#Omake: The All for Ones ClubOther All for Ones: You’ve been thrown out of the club for vaulting the Second as if he’s a treasure.All for One: But I only did that to lure Yoichi into a trap! It was a legitimate big brother move.#Omake: The Bad EndingAll for One: I’ve captured you now, you m@th@rf@ck@r!Kaiji: You mean brother f@ck@r.All for One: …Die.Kaiji: (Dead and living in the Void now) Totally worth it for the look on his face.'
User: Summarize the chapter based on the content provided, ensuring to follow the set format and emphasize key aspects within the specified length.
User: Summarize the chapter based on the content provided, ensuring to follow the set format and emphasize key aspects within the specified length.
Assistant: