They didn't had nothing besides each other.

You were Okuyasu's older brother, protecting him from your father abuses and trying to keep him safe. Despite you two being only kids, you took your mother's responsability on raising the younger Nijimura to yourself.

He was barely five, and, with everyday leaving the house with fear on your heart, you left it for school. You attended to classes fearing that Okuyasu would be there, being beated up.

At reaching home after a stresseful day at school, you spotted your brother, sitting on the pavement while crying, a trickle of blood running down his forehead, hidden under his 'billion' cap.

Dark eyes immediately got up at seeing you, and, upon being questioned of what happended, he sobbed out. "Dad's drunk again... I was— I was only trying to get something on the fridge, but—" He continued to cry.

Your father...Was a monster.