Hyun Cha/Plot

## Plot

### Sweet Home

Hyun is introduced as an extreme social recluse, shunning even a family vacation. Upon learning his family had died, Hyun attends the funeral, but only vents his bitterness. He later moves into Green Roof Apartments where he resolves to live until October 25, which is when the final movie of his favorite anime comes out. After watching the movie he planned to take his life.

However, the monsterization apocalypse begins. His first encounter with a monster is with the Hungry Monster, who was formerly his next door neighbor. He went to check on her after he noticed his food was stolen, but was forced to run away when he noticed the bloody mess in her apartment. He accidentally attracts the monster's attention, and his encounter with it happens through the door camera. He witnesses the young lady slowly monsterize, something that greatly terrifies him. He works up the courage to go and help his upstairs neighbor, Jisu Yoon, but ends up running into Wook Pyeon. As a misunderstanding starts to unfold, Hyun experiences the first signs of monsterization and faints. He wakes up a few days later and uses the internet to check what is going on. He realizes, with horror, that he is turning into a monster himself. He also narrowly survives an encounter with the Blind Monster after making several blunders that attract its attention.

He tries to get in touch with his online friends and gets more information. He realizes that the friend he has been chatting with may live in the same apartment he does. He attempts to open a window to find the Eyeball Monster staring at him. He keeps his blinds closed for awhile out of fear. He opens up the blinds one day to find that a man was trying to climb down. He warns the man that the Eye Monster was right behind him, but this scares the man, causing him to lose his grip and fall to his death. Hyun decides to save the kids by throwing his keyboard at the eye monster, but this just provokes it into attacking Hyun. He is saved when Dusik severs Eye Monster's head, though he did not kill it.

Dusik invites Hyun to his room to help equip him to save the children. Hyun leaves, and is forced to fight and stun the Blind Monster. He makes it to the children's room, and after scaring the Slime Monster away, gets the children. However, almost immediately after leaving their room, they are forced to run away from the Steroid Monster. Hyun stays behind to hold it back, and is saved by Jisu and Jayhun Jung. After explaining the situation to the two, Hyun and them try to catch up with the kids. They manage to distract the Steroid Monster long enough for the kids to get away. The Blind Monster then arrives due to the commotion, and attacks the Steroid Monster. Hyun is eventually forced to distract the Steroid Monster again, but the group manages to get the monster out of the building.

The children, a mother who lost her child, Jayhun, Hyun, and Jisu make it back to Dusik's apartment. It is there where Hyun admits he is infected and is in the process of turning into a monster himself. This creates some distrust in the group, particularly with Jisu, but they learn to put aside the feeling and start bonding.

After a few days, Jayhun, Jisu, and Hyun decide to leave the apartment in search of supplies and a safer hideaway. However, they are attacked by the Tentacle Monster, and Hyun becomes severely wounded in as a result. As Hyun loses consciousness, he hears a rescue party arrive. While unconscious, his Inner Monster attempts to create a utopian dream world to get Hyun to give in to his desires. However, Hyun notices several inconsistencies in the false reality and realizes it was a trick. He refuses the Inner Monster's offer and regains consciousness.

The rescue party has taken the group in, but is deeply mistrustful of Hyun due to him turning into a monster. Hyuk Lee organizes a vote, in which the majority lets him stay, but ask that he remain isolated from the main group, though now Seok Kim joins him as he also started monsterization. Hyun is tasked with Wook Pyeon to go to the 14th floor to save Dusik, the lady, and the children. Unbeknownst to Hyun, the lady has already succumbed to monsterization and became the Infant Monster. Hyuk then secretly tells Hyun that the children should be treated as optional and should be abandoned if they need to save Dusik's life, infuriating Hyun.

As Wook and Hyun make their way up the stairs, they get sidetracked by Wook's goal to personally kill every monster he comes across. Hyun takes advantage of his advanced healing ability, "gifted" by his infection, to electrify the Reach Monster, giving Wook time to find and incinerate it. Hyun and Wook eventually re-encounter the Tentacle Monster. As the Tentacle Monster starts proving more than a match for the two, Mr. Ahn and Yuri Park arrive and save them. In the safety of Mr. Ahn's room, Mr. Ahn pranks Hyun by pretending to not want to be around someone who is turning into a monster. The now group of four attempts to climb the stairs, but accidentally wake up the Speed Monster. The Speed Monster manages to knock Yuri and Wook unconscious. Hyun has some success fighting it and is eventually able to trap, stun, and incinerate the monster. They reach Dusik's apartment, where Hyun learns the sad fate of the woman.

Dusik is brought down to the lobby where he re-activates the elevator. However, Eun Lee notices someone else has used the elevator. Mr. Kim, the apartment security guard, emerges. While some bystanders are relieved and go up to greet him, Eun realizes he is no longer human. As Mr. Kim attacks, Hyun is forced to argue with Byeong as he refuses to remove the barricades to let Hyun and Jisu fight. After getting to the lobby, Hyun saves Mr. Ahn, but is horrified and depressed to discover Jayhun has been killed. Additionally, he begins losing hope as Mr. Kim's durability makes his attacks near ineffective. His Inner Monster attempts to turn him with the promise of more strength. Jisu, however, helped snap him back to his senses and encouraged him to fight on with his own power. Hyun takes advantage of the Tongue Monster's attack to stick its tongue on to Mr. Kim, draining Mr. Kim of its organs and letting the survivors incinerate the remains.

After this attack, Dusik upgrades the cars, and Hyun is selected to go on a mission to retrieve food at a nearby grocery store. However, the party could not make it out of the parking lot before the Steroid Monster attacked. The monster managed to incapacitate most of the party and was about to crush Hyun when Mr. Ahn shoved him out the way, sacrificing himself in Hyun's place. The Inner Monster attempted to take control again, but Byeong managed to save the day by commandeering a passing bus to help defeat the monster.

These feelings of joy were short lived as Wook realized Byeong ended up taking a prison bus with a criminal gang inside. As the criminals took over, Joon Shin, the gang leader, attempts to coerce Hyun into joining him but relents as he is not going to kill him while he is still useful. Following the Tentacle Monster's attack, Hyun tries to reason with the Slime Monster, but his actions are pointless when Joon Shin has his gang incinerate the monster.

As Hyun thinks over his ideals, he runs into the face monster. He soon realizes the monster is one of the survivors, causing him to hesitate killing it. However, he is forced to incinerate it as it turns hostile. This causes Hyun to lose faith in his ideas, and join up with the gang. His first assignment is to go with Ihyun Jo to destroy every other monster they can find. However, the two's opposing views on how to treat monsters cause an argument, and eventually a fight, when Ihyun discovers the Infant Monster, who has since turned into a cocoon.

Jisu eventually catches up to Hyun, worried about his emotional state. As the two wonder about the egg, Ihyun seizes the opportunity to incinerate the egg. This has the effect of attracting a horde of monsters. One monster, the Flying Monster, breaks into the window and nearly abducts Jisu, who was willing to sacrifice herself so that Hyun didn't have to rely on monsterization to save her. Hyun snapped back to his senses and used his electric spear to shock the monster into retreating, although he had to impale Jisu to do so.

The two make their way to the ground floor, but Jisu gets taken hostage by Joon Shin. Hyuk saves the two, but then Hyun needs to talk Hyuk out of killing Joon Shin. It is then Hyun notices Hyuk is turning into a monster. Hyun has to quickly snap Hyuk back to his senses, as a horde of monsters is beginning to break the barricades. Hyun and Jisu manage to get Eun and the kids and get to a higher floor. However, Hyun runs back to the garage when he learns Duzik is turning and is planning to sacrifice himself. When he reaches Dazik, he realizes he is too late and mourns Duzik's death. As he does so, he is shocked to see a regular person approach him.

Upon making contact with the mysterious figure, Hyun falls unconscious and confronts his Inner Monster. The Inner Monster reveals that the cause of monsterization is actually a part of the human soul seeking to "save" humanity, Hyun denies this as corruption. However, in the dream world, he hears his mom and is tempted to open the door. However, to his Soul's shock, Hyun declines, stating that he has people right now he needs to protect. As he snaps back into reality, he punches the mysterious man, but the man is completely unfazed. Hyun then realizes Dusik has turned into a monster. While mournful, he resists his soul's insistence to give in and prepares to fight the now monsterfied Dusik, but Wook Pyeon and Hyunshik Lim arrive and kill Dusik in his place.

Hyun, Wook, and Myeong-Il rush up the stairs towards the roof. They hear Jisu's bass, and Hyun realizes exactly what she is doing. He calls upon his monstrous strength to boost his speed and strength to dash to his room, which is directly below Jisu's, to avoid the crowd of monsters on the 15th floor. He successfully breaks into Jisu's room through her window. Jisu is alarmed that Hyun came to save her and that he is noticeably closer to being a monster, with his sclera and most of his body now discolored, save for the skin on his face, and his hands seeming more claw-like. However, she does not have time to snap Hyun out of it as the two prepare to face the oncoming horde.

After the monsters break down the door to Jisu's apartment, Hyun slams into the monsters and pins several of them to a wall before stabbing them and electrifying them. Although he is injured and one of the monsters wounded his arm, he continues on his monster killing spree. Wook, Myeong-II, and Hyuk manage to catch up to Hyun ad Jisu and help them kill the last of the monsters that were attacking them. They then run to the top of the apartment to escape into the forest.

On the rooftop, the remaining humans were about to finish preparations with the grappling hook when a now monsterized Joon jumps to the top of the building and kills Myeong by hitting him off the building with brutal strength. Hyun, Ihyun, Hyuk, and Wook attempt to stop Joon, but are outmatched, with Ihyun killed and Hyun unconscious after being slammed brutally into the ground by Joon, and the rest of the survivors badly weakened and severely intimidated after being hit by debris that Joon launched at them from the sheer strength of his roar. Despite all seeming lost, Hyun quickly heals and awakens while still being suspended in the air, gripped by his hoodie. Angered, he tells Joon to get his hands off of him; Joon maliciously complies by throwing Hyun across the roof into a corner, stunning him once more.

   After Hyun regains consciousness a short while later, he stops Jisu from throwing a piece of rooftop at Joon and tells her to go and escape, to which Jisu refuses. By this time, save for the still-human skin in the center of his face, Hyun's body is now fully discolored. Hyun then walks past the others to face off against Joon, standing protectively in front of those he has come to care about. In his mind, Hyun finally walks through the door and meets his family again, while in the real world, he apologizes to Jisu for not being able to keep his promise to write the lyrics to Jisu's next song. As his body begins to fully monsterize, Hyun uses the last of his strength to admit that he had at least thought of a title to the song: "Sweet Home." With those two final words, Hyun's transformation is complete, and his monster form is revealed to be a spear-wielding knight with a tattered, cape-like hood. The monsterized Hyun, who now has gained even more strength and agility, leaps at Joon and kills him in an instant, blowing a huge hole in Joon's body with his spear and showering the area with blood and gore. The monsterized Hyun lands behind the remains of Joon, then turns to the survivors. Jisu makes to run to him, asking if he's okay, but is stopped by the others, who argue that Hyun is now a monster. As proof, Hyun throws his spear at them, missing but shattering a hole in the wall of the roof. Hyuk steps in between the others and Hyun, inviting him to attack him; Hyun wastes no time in spearing Hyuk through the gut with his bare hand. Filaments of Hyuk's body thread around Hyun's arm, wrap around his body, and anchor to the ground, giving a tearful Jisu and Wook time to escape by shimmying down the rope. Fueled with determination, Hyuk grunts out that his desire is to stop Hyun, then he also monsterizes and explodes into a giant, monstrous mass of flesh spanning more than half the roof, imprisoning Hyun.

Some time later that year, as rain pours down on the ruined city, the flesh prison that Hyuk had become crumbles to reveal two egg-like cocoons in the middle. Hyun's left arm, with his old self-harm scars visible on his exposed wrist, breaks free of one of the cocoons, and he steps out nude, now an evolved monster. His appearance is human again and free of any evidence of having once been a monster, save for his eyes, which lack pupils, and his face, which lacks emotion. He steps through the remains of the Green Roof Apartments and notices the phone he'd cast away lying on the ground, its screen lit and Jisu's song recording loaded. He presses the play button, and as "Sweet Home" plays, tears well up in his eyes and fall onto the screen, defying the words of the evolved man who had told him that they could not feel emotion. He is shown to have romantic feelings for Jisu, initially noticing her because of the way she looked like Maria, the protagonist from *Maria from the Sky*, the television show he liked, and she eventually likes him back, going as far as to hug him after he evolved.

Seeming to have reawakened his sense of self, Hyun sets out searching for the survivors. In the following winter (a year approximately),--> barefoot and wearing only a tattered brown cloak of discarded fabric, he finds the reinforced settlement that they had become a part of. From the lookout post, Jisu watches as Hyun cracks a smile and begins crying, a sign that he managed to regain the human parts of himself that mattered. The Green Roof Apartment survivors are allowed to open the settlement's large wooden gate and rush out to reunite with Hyun, and Jisu embraces him, crying tears of joy this time.

### Shotgun Boy

After becoming part of the reinforced settlement called "Sweet Home" in his honor, he and his group (Jisu, Eun, Wook and Yuri) find Gyuhwan's group (he, Shinyeong and Jayden) ...

1. ↑ Ep. 138
2. ↑ 2.0 2.1 Ep. 139
3. ↑ 3.0 3.1 Ep. 140