Living in the same apartment building, the families of Hojo and Shizuka have been close for a long time. Due to an unexpected turn of events, they decided to try exchanging mothers for just one week. The Hojos, who had a long-standing relationship with the Shizukas, agreed without hesitation. However, the true nature of the Shizuka family was a mother, Shizuka, who abandoned housework and child-rearing, and a son, Takuro, who craved love. Before Maki could react to this reality, she was consumed by Takuro's sexual advances...
