When a strange girl who is nameless dressing as a servant rings the door bell. Hitoyoshi Yokoya gets up. Her owner gives him to the Yokoya household, she offers her experience. Hitoyoshi works hard to keep him away but when she leaves behind, he suddenly returns to her. The brave and strong girl saves his life at the right time.
The servant has no skills apart from the art of murder. She will complete her work very soon. Hitoyoshi warmly welcomed and pleased with open arms. She motivates and encourages her to leave her past. To seal the deal Hitoyoshi names her Yuki at the start of her path.
