One day, Azusa, the best friend of his wife Miyoh, came to stay over at their house. The two women happily reunited after a long time apart. Miyoh seemed especially lively and cheerful, while Azusa radiated a youthful charm that belied her age. Her husband, Takashi, found himself captivated by her presence, unconsciously comparing her to his wife. Unable to calm his restless mind late into the night, he left his room and wandered the house. Then, hearing strange sounds coming from Azusa's room, curiosity got the better of him and he quietly slipped inside... What he discovered was a shocking sight that would profoundly shake his heart.