Six years ago, Yuri lost her much older husband, Takao. While buying offerings for his seventh-year memorial service with her stepson Jishi, the elevator they were riding in experienced a power outage. The fear of darkness and the heat from the power outage gradually pushed them into a romantic relationship, causing Yuri to lose her reason and become a puppet of lust. From that point on, their relationship was no longer that of parent and child…
