Five years into marriage with my wife, Ai. I've lived my life supported by her sincerity and devotion. Never did I imagine witnessing her pure heart being corrupted... One day, the doorbell rang, and there stood my uncle, Ippei. He'd been kicked out of his place due to a fight and asked to stay for a while. I set a limit of one week, but it seems there was some tension between my uncle and Ai... Enraged by her attitude, my uncle resorted to using aphrodisiacs, subtly poisoning her body through aromatherapy, tea, and alcohol... .