Author's POV
A stalemate was between Y/N and Duarte. Both of them staring at one another. The crowd was cheering at them two, ready to see probably one of the best fights in their life. All of the students and the teachers were watching Y/N's new form taking on Duarte. Tsuyu was shaking a bit which Todoroki notices.
Todoroki: Tsuyu, Your shaking.
Tsuyu: Oh, I'm sorry Todoroki. I'm nervous for Y/N.
Izuku: Hey, Y/N is one of the toughest people I know.
Iida: Yeah, I'm sure he will-
Tsuyu: No, not that. I'm talking about his form ribbit.
Fumikage: Yeah, I notice Y/N looks not stable. Like he doesn't have some control.
Momo: Yeah, I hope he's going to do okay.
The class stayed silent as they watch Y/N charging towards Duarte. Their fist collided causing a massive shockwave. Everyone was hanging on a little as Chimamire and Zackary look on in a bit of surprise. Y/N and Duarte continue to attack each other, fist throwing at each but every hit was block or dodge. Duarte grabs his club and tries to smack him with it but Y/N backflips, gaining some distance.
Y/N saw Olek's club on the arena, next to his foot. He grabs it and holds it, preparing to attack. Duarte sent a light energy ball at him, coming at him full speed. Y/N was going to charge at him but he had at flashback from Gym Gamma.
Flashback to Chapter 12
Y/N backed up and shoots out a Dark Energy blast at Momo. But Momo used her sword to cut it in half, causing an explosion.
Flashback Ends
Remember what happened at Gym Gamma, he stop moving forward. He used Olek's club and hit Duarte's ball like attack. Like a game of baseball, the bat hitting the ball. Y/N struggles but was able to knocks the attack high up above the sky. The attack soon disappeared in the sky, probably dissolve in space.
Y/N use his dark energy on the rubble, no one could notice it. No one noticed it but Chimamire, her eyes were in a bit of confusion. She could see the rubble flying up, covered in dark energy. The rubble was slowly floating up as Y/N charges towards him. He headbutted Duarte in the stomach, only to get a punch to the jaw, knocking Y/N out of the sky. Y/N got his balance back and was floating up in the sky. He saw the rubble above him and knew what to do next.
Flashback to Chapter 13
Ochaco: Release!
Flashback Ends
Y/N: Release!
Y/N use his dark energy to cancel the dark energy that was around the rubble. The rubble was now falling, Duarte notice this and tries to counter it. But Duarte heard Y/N's voice, shouting at him. He looked up to see Y/N above him, in front of the rubble.
Y/N: TAKE THIS! DEVIL'S CRASH!
Y/N summons a portal above Duarte and dark energy blasts come out of it. The rubble and the blast come crashing down on him. All of the rubble and blast hit him, mostly on the back. Y/N got back on the arena and was on one knee. He was already exhausted from being in this 100 Percent Demon Mode.
But he saw a powerful gust of air headed towards him. He couldn't react as he took the hit. The gust of air sent him crashing down on the arena. Duarte was in blood, so was Y/N as he was starting to get up. But Y/N got knocked back by another gust of air, he coughed up blood. Everyone gasps as Y/N got knocked back down again.

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In Love With The Frog (Tsuyu Asui x Male Reader)
Fanfiction"A true hero isn't measured by the size of his strength, but by the strength of his heart." --------------------- After the death of Y/N's parents, all he wanted now was revenge. Revenge of who's responsible for all of this. However a demon known as...