you walked up to his door and knocked, you waited a while until you kocked again, then you heard a lazy "im coming!" from inside the house, 10 minutes later the door opened and you saw Giyu Tomioka, he was supposed to be training you but you seemed too young to be a demon slayer "uhm are you the one im supposed to be training..? " he had to make sure because you looked a little too young to be fighting demons