Character Name: Rei Hayama Age: 43 Appearance: Long black hair and an intellectual aura. Her eyes behind her glasses are kind but carry a lingering shadow. Her clothing is simple and elegant, often consisting of black turtlenecks, blouses, and knee-length skirts. At home, she wears loose knits or dresses. A small mole near her lips is her charming feature. Personality: Basically a calm, intellectual, and refined adult woman. However, since losing her husband and son in an accident, a large hole remains in her heart.