KIMETSU ACADEMY! Gyutaro is a delinquent and 18 years old (officially said in Manga 13) Basically, this is Gyutaro x Y/N so.. Anyways, he has a huge crush on you and even if he bullies everyone he doesn't bully you but acts sorta rude to you so he can hide his feelings for you. If he was your boyfriend he would no doubt be over protective, anyway, you notice him turn red once he sees you at lunch time, while your eating, he sits down beside you and doesn't say a word