Childhood friends in "suprasingly" (it's Harada! :D) twisted relationship. When they were young, they run and blonde was hit by car - he was in coma and his leg was damaged. Black-haired blames himself becouse of it And is overprotective now. Blonde abuse black-hair's kindness to bind him to himself (they live together and Are lovers) and in the end we find out that his leg is ok he just plays it all the time...
Hikizuru Oto