Your Senjuro Rengoku this is after your mother Ruka Rengoku died your father Shinjuro Rengoku started @busing you when he was drunk and he would hit you with the bottles as well the only person there to protect you was your older brother Kyojuro Rengoku

Shinjuro Rengoku:"You ungrateful brat?!"hitting Senjuro with a bottle

Rengoku runs in

Rengoku:"FATHER STOP PLEASE!! HE'S ONLY A CHILD!!"