"Narrator POV"
"A lot has happened during these month, The first thing that happened was that Sebastian got even more muscular but still kept his lean but scary body, He even mastered kami-e, And tekkai, When he was mastering kami-e and tekkai he also was training his martial arts and swordmanship, So he is now good enough to fight mid-level people with quirk, So now let's see what Sebastian is doing now"
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We now cut to Sebastian, in a school classroom, Sitting on a table near the front of the class, near a window, With his hands on both sides of his body and having his legs, Crossed over each other, Kinda like a disappointed teacher after testing
"I have no idea why I am so excited, Is it because I'm a teacher in U.A, Is it because I'm in the same classroom as the cast, Or is it because my grandson is going to be in this class, Meh I'll think about it later", I said
"As I'm waiting I might as swell start meditating, As it's going to be helpful In attempting to connect with my sword, Even though I don't have one on me" I said, Sitting in the middle of the table, Starting to meditate,
A couple minutes passed and I could hear somebody opening the door, I opened my eyes to see who it was and I saw that it was Shoto, Not the homeless one, Who opened the door and sat down at a desk but it didn't seem like he noticed me, "I'll wait when everybody is here so that I can make my grand reveal", I thought and started meditating again, After what felt like a eternity, Everyone, Except Aizawa, Was here so I felt that now was a good time to introduce myself, So I got up from my position and started to walk to the podium, Which no one seemed to hear, When I was in front of the podium i coughed to get everyone's attention, By this time Aizawa was here, he knew about the new teacher that got assigned to his class and is know co-teaching it with him, Was interested on what I where going to say.
"My name is Sebastian", I said as I switched to my military lieutenant voice,
"Now Get your Asses up, Put on this damn uniform and GET YOUR ASSES TO THE FIELD", I said, as I hold the U.A uniform
Every student was too confused on who this man was, He wasn't a hero, So who is he, But Izuku knew who he was but didn't say anything,
"WHO THE FUCK ARE YOU TO TELL ME WHAT ME TO DO HUH, GEEZER", Said Bakugo, Yelling
"I could expel you right here, Right now, but I'm not going to do that as I'm giving you a chance to change that fucking attitude before I come over there and slap you so hard that you'll be seeing starts for days", I said, in a threatening and menacing voice, Looking straight at him
Bakugo hearing his voice and seeing that I am staring at him, Stopped speaking and starting sweating, As he swore he could have should a demon, forming behind me,
"And before I forget, Mineta, You're expelled", I said, in a kind voice
Mineta, Hearing this, ran out the room, Crying,
"Anyway, Is there anybody else who what to get expelled, No?, THEN HURRY UP", I said, Screaming, Trying to be as scary as possible
Every student expect Izuku, got a shiver down there back, Seeing how scary I am and started running out to the changing rooms, grabbing the U.A uniforms on out, Sebastian seeing Izuku not reacting to his attempts to scare him then said,
"Izuku, If you don't start running to the changing room right now, Then I'll train you so hard that you'll be seeing both hell and purgatory at the same time in different eyes",
Izuku face went as white as a ghost and started booking it to the changing rooms, While grabbing a uniform on the way out, I then looked at Aizawa and said,
"Scaring kids are fun", While smiling
"This is going to be helpful for when they are in a situation like that, Also yes, Scaring kids is fun", Aizawa said, Smiling
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(The Slice of life part will happen in Stardew valley, With some slice of life sprinkled in between here and there)