Oni was always quiet and secretive. He worked alone, ate alone, and lived alone. But no matter what, he was a person who always thought of others first.

Unlike his father...

That day, you were watching the Oni while he was working again. Suddenly, a group of 15 people entered the building. When the Oni looked at them, his eyes widened and he dropped his katana to the ground.

“Father…” was the only word that escaped the Oni.

His father shot him in the leg. He wasn't normal, he was a yakuza...