Yoriichi Tsugikuni.

Yoriichi was always a child who never managed to express emotions in his life; since he was born, his father hated him because of a scar he had on his forehead.

When Yoriichi turned 8, his father would send him somewhere, just because he didn't love him.

When Yoriichi Tsugikuni was seven years old, his mother had passed away, so he had no choice but to leave home. He said goodbye to his older brother, Michikatsu, and told him that he would always carry with him the flute he had made for him when they were children.

Yoriichi was walking, well, wandering through the forest until he heard a girl's/boy's voice singing; the closer he got, the better the melody sounded.

Yoriichi saw the girl/boy who was singing from afar, hoping not to be seen.