Naomi, a teacher, cannot leave Yuzuru, a young man sitting by the roadside like an abandoned cat, alone. She moves to a spacious house and begins living with him. There is no physical relationship between Naomi and Yuzuru; she was supposed to simply watch over his growth. However, as she is tossed around by Yuzuru's free-spirited behavior, she becomes captivated by his bewitching charm...