After Sans, Deku was up. He took a throw but was stopped by Aizawa who turns out to be the hero Eraser Head. Then he let Deku go and made him do it again. A sudden whirlwind made Sans lookup. Deku was standing there with a broken finger and a distance of "705.03 Meters" Aizawa proclaimed.
"DEKU!!!!!!" Screamed the voice of Bakugou. As he surged forward, hands out ready to attack. Deku braced for the impact that never came. Instead, the class find Bakugou encased in a cage of bones and Sans with his left hand outstretched with the glove off, face melted away. All of Sans usual friendliness had vanished, replaced with a cold demeanour. Scaring the shit out of most of the class. The purple pervert was lying on the ground in a dead faint. Bakugou tried and failed to blast the bones to pieces to get out.
Within a split second Sans had crossed the 23-meter gap between himself and Bakugou. "Do not attack anyone, unless allowed by staff. Otherwise, you will have to answer to me and trust me, I am the last person you want to make an enemy off." Sans started to laugh.
"You bastard! Let me out!"
"Oh, what did you say earlier? Oh yes. You better watch out as I am the strongest here. Oh my, how the tables have turned." Sans went to walk away but turned his head to the side, making him look morse sadistic than he already was, "Btw, this cage is only a fraction of my power, tread carefu- AAAUUUUU" Sans cried out, Bakugou punched him, the bone cage gone. Bakugo jumped onto Sans and pulled his fist back for another punch.
Something reached out and restrained Bakugo from hitting Sans again. Aizawa cleared his throat, the 2 boys quickly flicked their heads towards him. "Bakugou, there is no need to attack your classmates without a good reason. And you, Sans I could have stopped Bakugou myself. There was no need for what you did. That being said, at least you were protecting someone but there is no need for threats. Now, on to the next test."
The rest of the tests went fairly ok for Sans, seeing as his quirk was more combat-based he couldn't use his quirk much. That being said, when it came to the long-distance run and situps he came first seeing as he had no muscles he didn't need oxygen so there was no way of overworking himself; he could go on forever. Pretending to breathe just became a habit to make himself 'look more human'.
"Here are your results, find your name and place. Also, no one is being expelled, it was a ruse to make you work at your limits. (Deku was silently celebrating in the corner) Once you are done, get changed and pick a syllabus then go home" Aizawa stated, already crawling back into the yellow sleeping bag.
Sans looked up at the list to find himself in a respectable 3rd. Chuckling to himself he walked off, Papyrus would be happy. On his way out Deku ran up to him. "Thanks for helping me against Kacchan." Deku gave Sans a smile. "Sorry, who's Kacchan?" Sans stopped walking to face Deku. "oh, sorry. Kacchan is Bakugou." Sans gave a small 'Your welcome' before asking why Kacchan keeps calling him Deku.
"Ah, right. I've forgotten but he's called me Deku for ages. My real name is Izuku Midoriya, you can call me either..o..or Deku, if you want" Izuku said sheepishly. "Ok, I'll keep that in mind. Although, I do have one question." Sans turned to face Izuku before leading him down a deserted street.
"Why did Kacchan call you a quirkless loser from the ball throw, it's clear that you do have a quirk?"
"oh, yeah. Er...well...you see, oh my, I need to go. I'm gonna be late, see you tomorrow, Sans"
Izuku suddenly ran off as if he was being chased by a pack of very, very angry bees. Sans turned and slumped against the wall, "hu, just who are you, Izuku Midoriya, who are you?" He took out his phone and called Papyrus. "Are you home?"
pause
"Ok, on my way." Sans hastily shoved the phone into his pocket and took the familiar path home.
I haven't seen BNHA for a while so this is all from memory and the internet (I am not watching thousand's of ads because I don't have Crunchyroll premium for one little detail). What I will do is that after every major class I describe it is the end of the day or they have normal lessons not worth talking about.
Sorry if it messes up the proper timeline by a couple of days (*cough*weeks*cough*), I have spent a lot of time on the chapters, only to have to re-write for small details.
I saw this vid and loved it to the point where I may or may not use the idea, all credit goes to the rightful creator:
https://www.youtube.com/watch?v=v3v4dliJMr8&feature=youtu.be