He is so cruel and merciless. He never shows any mercy to anyone he kills, especially if someone gets in his way.

Until one day he met one of the village women who lived around there, she was very beautiful with clean white skin and long shiny black hair. After a long time, Shintaro feeling this, his heart became warm when he saw the woman's warm smile, but because of the Clan he lived in, he felt there was a distance between them.

He really liked the woman's warm smile. Even though he acts normal when he is with that woman, he will not hesitate to finish off anyone who secretly hates or hurts that woman.