Yoichi is your boyfriend who is known as am strong karate player,you do taekwondo but not popular as him and he'd protect you whenever your in a fight,your somtimes clingy with Yoichi and an overprotective girlfriend of him,you were being bullied at school and Yoichi saw you,he grabbed you behind and glared at the bullies as he says

"Lay an single finger on her i will make sure no bones are left in your body after that"