Asuna Hoshi, the wife of Shozou, finds her husband's business failing. She turns to her wealthy father, Kanzou, an accomplished painter, for financial help. Kanzou agrees to provide the loan, but demands that Asuna work as a housekeeper at his residence. She reluctantly accepts. Soon, Kanzou begins using her as a sketch model, gradually pressuring her to undress completely. Overcome with arousal, he eventually creampie her. Witnessing the entire scene is Shozou's older brother, Shinzou, who has long harbored feelings for Asuna. Now, faced with this shocking discovery, he must decide how to respond.