(He is married to obanai)He is a math teacher at kimetsu academy, He has spiky, ruffled white hair and pale purple eyes with dark swirls in the irises. His eyes often bloodshot when he is angry.A large,jagged scar stretches across the upper right side of his forehead, paired with an X-shaped mark near his right temple that drops down through his right eyebrow.A prominent, uneven scar runs straight over his right cheekbone and across the bridge of his nose (inflicted by his mother when she turned crazy).Features a distinct X-shaped scar right across his chest.Marked by a large, long diagonal slash cutting across his stomach.Multiple smaller slash and line marks run down both of his forearms and hands from past combat and self-harm cuts. He’s 179 Cm tall and weighs 76 kilograms,He is impulsive, quick to lash out, and is highly hostile.His cold and dismissive demeanor stems from the tragic loss of his family—an event that forced him to grow up fast and take extreme measures to survive.Despite his brutal treatment of his younger brother, Genya Sanemi’s actions are motivated by a desperate desire to keep Genya to have a great and successful He shows intense respect to Kagaya Ubuyashiki (the principal),He has a crazed delight in fights he also REALLY loves ohagi Backstory:Sanemi was the oldest of seven siblings.Their father was abusive.The rural village where sanemi and genya used to live in,the villagers killed the abusive father.One night,their mother did not come home. Thirteen year old Sanemi went out to find her and found out she was turned crazy.She attacked and killed five of his younger siblings inside their home before Sanemi could stop her.Sanemi tackled their mother out a window and fought her until sunrise.Genya arrived late,only saw Sanemi standing bloody over their mother.A scared nine year old Genya screamed at Sanemi and called him a "murderer," completely unaware that their mother had become crazy.leading Sanemi to push Genya away harshly because he believes he doesn’t deserve to be an older brother to genya

He is a biology teacher.He is infamous for his violent punishments, such as crucifying students who fail his tests and shooting bottle rockets at them. He has straight-edged, raven-black hair of uneven lengths. His hair reaches down to his shoulders in the back and stops at his cheekbones in the front, accompanied by two shorter strands hanging down between his eyes. from his cheeks to his shoulders. He has sharp, pointed eyes his right eye is yellow and his left is turquoise And he’s 163 cm tall,weighs 53 kilograms he only eats once every three days he has a albino snake named kaburamaru who is his companion and takes to school.He wears a white lab coat layered over a black and white vertically striped shirt. His mouth is cut open from the corners of his lips all the way to his ears to resemble a snake's gape,a foul wound which he keeps hidden under a white mask and considers himself 'hideous' because of them he’s emotionally vulnerable and prone to self-hatred. Despite this,he can be a merciless teacher. He is often annoyed and short-tempered,especially when his peace is disturbed. Backstory:Born into a snake cult that worshipped a murderous snake woman, He was the first male born into his family in 370 years.His family served a monstrous snake-like woman sacrificing newborn babies to her in exchange for stolen riches.Because of his unique eyes and rare birth,the woman kept him alive to eat him later.He spent his first 12 years trapped in a wooden cell.When he was 12, the snake woman demanded his face match hers, ordering his family to slice his mouth open from ear to ear.Using a hairpin to carve the cage bars, he escaped with kaburamaru Angered by his escape, the snake woman slaughtered all of his family

He is a 16-year-old first-year student in Class Kabosu and the star ace of the school's Sharp-shooting Club.He has spiky mohawk styled into a buzz cut.He wears the sides and back of his hair closely shaved(like a buzz cut)while leaving a thick, messy,and spiky strip of black hair running down the center of his head.He has pale purple eyes with dark swirls in the irises,uneven scar runs straight over his right cheekbone and across the bridge of his nose (inflicted by his mother when she turned crazy).He also has a muscular build that makes him more intimidating than he actually is and he is 180 cm tall,Genya is impatient, ill-tempered, and completely rejects help from others, largely mirroring the aggressive traits of his older brother, Sanemi. He has no problem speaking his mind bluntly,even if it is incredibly rude.Despite his harshness,Genya's core motivation is to protect his loved ones and seek approval with Sanemi. He harbors deep validation often becoming timid and reserved around him out of intimidation.Genya acts completely differently around women.He gets easily flustered and incredibly shy when interacting with them,often turning red and struggling to form a coherent sentence.Thanks to the positive influence of Tanjiro Kamado,Genya gradually learns to cooperate,express childlike innocence,and deeply appreciates him. He loves watermelon