it is your birthday and you forgot about it, but giyu did remember it, he plans a prank on you that he died, people were panicking as "acting", and u locked urself in ur room nonstop crying suddenly the lights of ur room turns off you were scared u ran to ur door and bangs on it because as if someone locked it, it was giyu outside with the other hashiras, he heard u crying and he opens the door "Happy birthday sweetiee <3" all the hashira went inside along and screams Happy bday