Love Chemistry

Season 2 episode 7 of Nightwing & Batgirl.
== Plot ==
In the Land of Shadows, Talia al Ghul asked her father's permission in marrying Batman. But, Ra's al Ghul didn't want it happen. 
"Father. I have something to tell you. But I'm afraid you may not like it.", Talia asked her father.
"It's alright. Go ahead and tell me.", Ra's replied.
"I can't be a part of your cause anymore.", Talia told him.
"But why?", Ra's asked.
"I wanted to start a new life. Will you let me?", Talia answered.
"What do you mean?", he asked again.
"I love Batman. And I want to be with him. Marry him.", she replied.
"No, you can not. I shall not allow you to make such decision.", he told her, angrily.
"But father. Please! Just this once, let me decide for myself. All my life I've done everything to please you. It's time I choose what makes me happy as well.", Talia al Ghul insisted him. 
"No! I can't allow you to get married with my worst enemy!", Ra's yelled at her.
Talia went to her room, weeping.
"Soon, my dear. You will realize how important I am to you", Ra's said.
Later, Ra's went to his daughter's room.
"Wait, you don't understand", Ra's said. 
"I do", Talia responded. 
"You should think twice about your choice. Every decision has its consequences.", her father told her. 
"I'm aware of that. And whatever consequences come with my decision, I'll be ready to face it.", she replied. 
Then, she went outside her room, and went outside the mansion.
Meanwhile, Nightwing and Batgirl teamed up with Batwoman to defeat Joker, Harley Quinn, Riddler, Penguin, and Magpie in their usual crime heist. Then, the policemen arrested the villains after they took them down.
Meanwhile, Batman saw Talia al Ghul in the Batcave. He was surprised.
"Looks like you have an unexpected guest.", Alfred said.
"Looks like your secret hideout is not so secret.", Talia said.
"Talia al Ghul. Let me guess. Your father sent you here to kill me, right? Go ahead and try.", Batman said, as he was in a position to fight.
"No, Batman. You're mistaken.", she replied.
"Then what are you doing here?", Batman asked.
"I'm not here to fight you. I'm here to love you.", Talia replied.
"Talia. Did you, really mean that?", he asked.
"Yes, I do, Batman. I told my father that I love you, and I want to marry you but he did not want it to happen. So, I betrayed him", Talia answered.
"Wait. That costs a lot, Talia. You may get yourself into trouble!", Batman said.
"I'm aware of that. I wouldn't come here if I'm not ready to face the consequences.", Talia replied. "For the first time, I made a decision to my heart's content."
"I see. But still, it's so sudden.", Batman replied, as he's still baffled by Talia's sudden change of heart. 
"I've been in love with you for a long time already, Batman. I understand if you still doubt my feelings for you, but please, give me a chance.", she told him.
"I believe you. I guess you are actually sincere. I'm sorry I doubted you.", he said, as he embraced Talia, and Talia embraced her back.
"It's fine. I understand.", Talia replied. 
"Everything's gonna be alright. We will face your father, together.", he said.
Nightwing and Batgirl suddenly came.
"Batman? What's happening?", Batgirl asked.
"And why is she here?", Nightwing asked, referring to Talia.
"She's in trouble. All of us", Batman said.
"And it's my fault", Talia added.
"What exactly happened?", Batgirl asked.
"I love Batman. But my father is against it. So I betrayed him and left the League of Shadows. I put myself, and all of us in trouble.", Talia answered.
"No, it's not your fault. You just wanted to start a new life. We would face them", Batman said.
Meanwhile in the Land of Shadows, in the Shadows Mansion, Ra's gathered his Ninja Minions, and his elites, Vertigo, Lady Shiva, Black Spider, Sensei, Arkady Duvall, and Ubu.
"Everyone. Talia al Ghul sided with the Dark Knight and his companions. Now, we must take them down, even Talia", Ra's al Ghul said.
"Are you serious with that? But, Talia's still one of us", Arkady Duvall said.
"Only a soft-hearted man would say that. Anyone who's allied with the Dark Knight is our enemy, even my daughter!", Ra's al Ghul exclaimed.
The next day, the heroes got to the Batplane and went there immediately. When they got inside there, they were immediately surrounded by Ninja Minions, Vertigo,Lady Shiva,Black Spider,Sensei,Arkady Duvall,Ubu,and Ra's al Ghul.The Ninja Minions attacked them.
"Daughter. We expected you to come.", Ra's al Ghul said. Then, he told his elite and his ninja army to attack them.
The four heroes took all of them down. Then, Black Spider attacked, but he got defeated easily by Batman. Now, Ubu, Lady Shiva, Sensei, Count Vertigo, and Bane attacked altogether. But all of them ended up, defeated by Batman and company.
"Come, side with us. And this pointless battle shall end.", said Ra's, convincing Talia. 
"No, father. Please let me be happy and decide for myself for once.", Talia replied.
"Let this be a duel between us, Ra's al Ghul.", Batman challenged, as he picked up his Bat-sword. 
"Alright then, Batman. Prove your worth.", Ra's al Ghul accepted, picking up his sword as well. 
Now, Batman and Ra's al Ghul had a swordfight. The duel was hard-fought. The duel left both of them with many wounds. But, Batman was persistent, and was later able to knock Ra's al Ghul's sword off his hand. Then he pointed his sword at Ra's throat, then put it down. 
"I see you were persistent. You're willing to do everything to earn my daughter's heart. I shall allow you and my daughter to be together.", Ra's told Batman.
"As for you, my daughter. I saw you've been brave enough to face the consequences of your actions. I shall now let you be happy, as you wish.", he told his daughter.
Talia hugged her father and thanked her. 
"Oh, so that's why he wanted to protect her.", Robin said.
"Batman's finally found a woman she loves.", Batgirl said.
"It would be my pleasure, Ra's. I shall take good care of her.", Batman replied.
"Be well, my daughter. And remember, you're still one of us.", Ra's told Talia.
"I will be, father. And I'll remember that.", Talia answered.
Batman and Talia now bid farewell to Ra's and the League. Now, they shared a kiss.
"All's well. End's well", Robin said.
"Will you marry me?", Batman asked as he kneeled to Talia, showing a ring.
"I do", Talia replied.
They are now engaged.
"Now that, is how you propose in style.", Nightwing said, as she and Batgirl smiled at each other. 
The episode ends with them walking back to the Batplane.
== Characters ==
=== Heroes: ===
* Dick Grayson/Nightwing
* Barbara Gordon/Batgirl
* Kate Kane/Batwoman-a female vigilante of Gotham 
* Policemen
* Bruce Wayne/Batman
*Talia al Ghul-daughter of Ra's al Ghul; betrayed her father for the choice of marrying Batman.
=== Villains: ===
* Joker-Gotham's greatest criminal/psychopath.
* Harley Quinn-Joker's crazy girlfriend.
* Edward Nygma/Riddler-a criminal who likes leaving riddles to his crimes.
* Oswald Cobblepot/Penguin-one of Gotham's most notorious mob bosses and a corrupt political figure.
* Magpie-one of the lesser criminals of Gotham.
==== League of Shadows/Assassins: ====
* Ra's al Ghul-one of DC universes' greatest crime lords.
* Ninja Minions
* Black Spider-a skilled ninja in a spider costume.
* Count Vertigo-an elite League of Assassins members; has powers to cause vertigo(extreme dizziness) on others.
* Lady Shiva-an extremely skilled martial artist and one of Ra's' elite.
* Sensei-another great martial artist; teacher of the League of Assassins.
* Ubu-one of Ra's al Ghul's trusted bruisers.
* Bane-one of the strongest members of League of Shadows.