This a troll one shot shit story requested by someone. So ye, enjoy.
The Sludge Villain stares up at the sign above him. The massive sign of UA. It has been months since he had took over the body of that green haired boy. It's a good thing that All Might was fighting some giant crocodile villain while he escaped in the sewers.
He doesn't know why he decided to train for 10 months. He just supposed that he didn't want a weak vessel who gets knocked down at the simplest punch. Especially after seeing that explosive blonde bitch who seemed to have a hard on for the body. So over the next 10 months, he got buff. Like, swole.
His classmates seriously looked at him in shock, awe, and even fear. Yeah getting swole all of a sudden is gonna draw attention, which is not what he wanted. However the kid was apparently quirkless, so that's fine. He has the sludge quirk now, but nobody knew about that.
He went home and his mom was trying to talk him out of going to U.A one night.
'U.A? This crazy kid wanted to go to U.A without a quirk? What the hell…' The Sludge Villain thought. It might be a good thing that he took the body. The kid was bound to get slaughtered as a hero, and that's if he doesn't get creamed at the entrance exam.
So just for the reason of 'Why the fuck not' he trained this kid and cleaned up that shithole of a beach. He figures when he is going to graduate, he is gonna reveal his identity just to see the shock on everyone's face before trashing his diploma and making his grand escape. He went to the U.A entrance exams and aced the written portion. The kid was smart, but weak. During the Physical portion, he used his slime as tentacles that wrapped around a bunch of bots and slammed them against the concrete. When he saw the Zero pointer, he tucked his tail between his leg and ran.
He didn't give a single flying fuck that the girl was trapped under the concrete. Tch. Natural selection, only the strong live. He never knew if she made it, but he assumed U.A wouldn't kill examinees.
That leads him to where he is now. In a uniform. Walking through U.A. He never imagined at any point that he would be at U.A of all places.
The day went by in a blur. Some hobo would explain he is their teacher. They all go out in gym uniforms and use quirks. Explosive blonde bitch would call him out. He would ignore him like he always would. He makes 15th on the leaderboard.
The next day he nearly shits his pants when motherfuckin' All Might bursts into the room screaming how he is here. He thought he had finally been caught. He thought the jig was up. He was prepared to swing out the window but then he remembered that the guy was a teacher here.
'How the hell do I forget something as important as that?' he questions himself internally.
All Might gives them all their hero outfits. Sludge Villain just decided a hoodie and jeans is alright. Not just any jeans, Wrangler Jeans. We all know Wrangler Jeans are indestructable. He didn't really care about his look.
So after they drew lots, he was on Team H with the rich girl with big tits. He doesn't bother learning names. He went against Team I, which was some shy kid was a rock head, and some buff guy with big lips.
The only part he listened to was when she explained her quirk. Her quirk was interesting. It might pay off to be friends with her. He can have her make things that help concealed himself more without her knowing it. He took a second to remember the kid's names and introduced himself. She introduced herself as Momo Yaoyorozu. He would do the classic gentlemen way of introducing oneself and kiss the top of her hand. She would blush like crazy as he made a remark about how he thought she smelled like a field of lavender.
After he was done teasing her, they came up with a quick plan and sprung into action.
He immediately used his sludge tentacles to get to the top of the building. He then digs into his hoodie pockets and takes out 2 canisters of sleeping gas and a gas mask. He sees the 2 both guarding the bomb and facing the door, the only way to enter the room besides the massive skylight he was currently standing on.
To make things even better, they figured barricading the door was the best solution to stop them, not even considering the skylight.
"Fucking noobs." He says shaking his head as he throws in the canisters.
Both don't notice the gas until they hear the cling of containers.
"Hey Koda did you hear that?" Sato asks looking around confused.
Koda looks around the room and panics as he notices 2 canisters pouring gas into the room. He grabs Sato's shoulders and shake him while pointing to the canisters.
"SHIT!" Sato shouts as he quickly downs his white stuff and starts to run to the door to try and move the stuff.
The Sludge Villain didn't know if the white stuff was sugar, salt, flour, cocaine, or baking soda. Either way he didn't care.
Koda tries to open his mouth to call for his animals but passes out. Sato is almost through the door until a slime tentacle latches onto him and holds back his hand.
He has one hand using a tentacle to keep him on the roof. While the other holds him back. He also has a gas mask on so he can go down and touch the bomb.
The Sludge Villain uses all of his strength to pull Sato back and in the gas range. Sato passes out.
Sludge Villain touches the bomb and his team is determined as the winner.
After that Sludge Villain walks up to Momo later, he uses his super sludge swagger, and scores her number, much to the ire of a grape headed midget.
He goes home, actually happy that his plan had no faults and that nobody questioned the sudden disappearance of him, or the sudden appearance of a quirk in the green haired boy. A quirk eerily similar to his own.
Now that he had that Momo girl on his side, he can really kick it into high gear now.