Deku: Spirit of Vengeance

Captive

The teachers of UA sat in the teachers lounge enjoying their free time, until the door swung open.
"This came in for us", said Snipe, holding what appeared to be a box. The teachers gathered around Principal Nezu as he opened the package, taking out a tape. He placed it into a video player, and moving pictures popped up on the TV.
"Hello Pros. This is Tomura Shigaraki speaking, here to show you two special guests." The footage switched to what appeared to be twi teenagers in a cage. "Two of your brats are in our possession. If you want them back unharmed, surrender All Might to us. Meet us at the harbor downtown from your school. See you then."
And just like that, the video ended. The teachers stared in shock. "What are we gonna do?", asked Midnight. "We're obviously not going to give them what they want. We need to gather up a rescue team", said Cementoss.
"We first need a plan", said Aizawa.

Izuku and Ochako sat in their cell, wearing quirk dampening cuffs. While Ochako sat against the wall, Izuku was pacing around anxiously.
He looked out the window to see the sky begin changing color. Izuku remembered the words Mephisto told him.
"Remember, my boy. Whenever it's night, and you are near an evil soul, your new power will awaken, and the spirit of Zarathos will ride again."
"Deku, calm down. We'll make it out of this", said Ochako. "Y-yeah." Izuku began to calm down a bit and sat down next to Ochako. "The others will find us. We'll be out of here in no time."
It became silent. The pair looked at each other, and started leaning in, preparing to kiss. But they are once again interrupted. "Hi! Is it comfy in there?", asked Toga as she skipped into the room. She saw the position the two teens were in. "Awww! Are you two in love?" They didn't answer. "Don't worry. Once All Might surrenders to us, you two will be free to go! Then you can kiss, hug, hold hands, whatever!" Toga then took out a knife. "Too bad I won't get to play with you two."
The female villain left the room, leaving Izuku and Ochako by themselves. "All Might? Surrender? He wouldn't do that", said Ochako. "No. He wouldn't. Everyone back at UA are probably coming up with a plan to save us right now", said Izuku. Ochako moved closer to him.
"Deku..." "Yeah?" Ochako was quiet for a while before speaking. "I'm scared." Izuku looked at the girl sympathetically. "Me too."
The two sat there, leaning onto each other. The wholesome moment didn't last, since Izuku felt a sting on the back if his head. He looked around and noticed how dark it was. "Uraraka, what time is it?" "Um, why?" Izuku sprung up and saw the moon outside the window. "Oh no..."
The door opened, and Twice and Dabi entered. "What do you two want?", asked Ochako. "We just wanna talk. Shut up! We ask the questions!", said Twice. "The boss wants you", said Dabi, unlocking the cell. He picked up the two teens and dragged them out the room. They were met with the rest of the league.
Izuku felt the sizzling sting spread through his neck. "Toga tells me that you two are acting like you're in love", said Shigaraki. "Are you?"
They didn't respond. "Even if it isn't true, I guess this could work." "This?"
Shigaraki removed the hand on his face to reveal he was smiling menacingly. Dabi shoved Ochako to the floor. He grabbed her hair and sniffed it. "She smells nice. A perfect scent, for such a cute girl."
All color drained from Izuku's face once he realized what they were going to do to Ochako. "Why don't I show you what it's like to be kissed by a real man", Dabi said into Ochako's ear. "GET OFF HER!", yelled Izuku before being knocked onto the ground by Toga. "When All Might arrived, I want him to see how broken his precious students are", said Shigaraki.
Izuku tried to break free from Toga who was holding him onto the ground, but her grip was too strong. He watched as Dabi removed Ochako's jacked and caressed her stomach.
Heat. That's what Izuku was feeling. Heat. Hotter than any normal heat. Heat that spread through his head. This time, he didn't try to fight back. Izuku let the flames consume his head.
"Um, Shigaraki..." "What is it, Toga?" Before she could reply, she was blasted off from Izuku.
The room went silent, as everyone stared at Izuku. Or what used to be Izuku.
"What's with the heavy metal look, kid?", asked Dabi, releasing Ochako and standing up. Izuku pointed his finger at the scarred man. "You."
"Me? Me what?" "As of now, you have committed the sin of lust. For that, you will face punishment."
"I've done a lot of bad things squirt. I still haven't been punished." Dabi shot a wave of blue flames at Izuku, only for the flames to turn red and be absorbed by Izuku. "You're fire. It is warm. But not as warm..." Izuku's eyes and head lit up more. "As hellfire."
"Surprise!", Toga jumped at Izuku with her knife in hand. As she struck Izuku, it melted. Izuku turned and glared at Toga. "This guy is scary. He's so cool!", said Twice, running with his razor measuring tape unsheathed. Izuku grabbed Twice by head and kneed him in the skull. Then he swung him into Toga, hard enough for them to fly into a wall. Shigaraki ran at the flaming skull man, ready to disintegrate him, only for Izuku to dodge and throw him up to the roof. Shigaraki was then pulled by back down by Izuku's chains and swung him around. He hit Dabi in the process, and the two villains were going around in circles.
Their spinning came to an end once they were slammed into the wall. Mr Compress was the only one left. He took out a marble which turned into a gun. He aimed at Izuku, only for the teen to smack it out of the villain's hand and grabbed his collar. "You have committed crimes that have gone unpunished for the longest time. That ends today." Izuku looked into Mr Compress's eyes. The man felt the most awful sensation known to man.
He felt as pain, both physical and emotional, attacked his soul, not ever coming to an end. Mr Compress was screaming for a while, before going silent, his catatonic body dropping to the floor.
"Deku?" Izuku turned around to see a scared Ochako. He realized what he had done and looked away. "Monster. I'm a monster." Ochako stood up and walked to her savior. She touched the side of Izuku's skull, the flames not harming her. Strangely enough, Ochako could've sworn she saw Izuku blushing when she touched him. "You're still my Deku."
The moment was interrupted by a groan, as the villains began to wake up.
Izuku placed his fingers in his mouth and whistled. A revving sound was heard, before a motorbike drive in through the wall. Izuku and Ochako hopped on, as the vehicle's appearance began to change. Izuku took one last look at the villains, before flipping them off and driving away.