After losing her husband in a traffic accident, rin stops drinking daily alcohol due to mourning. One day, her father-in-law, yoji, visits her. Yoji, who had always been unusually harsh towards rin, blames her for his son's death. Rin is forced to drink alcohol by yoji, who knows that rin turns into a slut when she drinks. A few minutes later, with alcohol coursing through her veins, rin finds herself with her hated father-in-law.
