Riko, a young wife, decided to marry Takuma, her former teacher, immediately after graduation, and they had been living a happy life together. Though Takuma had always maintained a professional distance during her school days, he had secretly been in a relationship with Riko. Their bond was pure, and their first sexual experiences were only recent. Riko had been enjoying a modest yet warm daily life until one day, a yakuza named Ito moved in next door and started picking fights with her. This incident quickly drags the couple into a living hell. As one absurd and twisted situation after another unfolds, how will Riko respond?