While her husband was on a long business trip, Akane started working as an assistant and helper at the home of Yuu, her popular female writer cousin who had a serial in a weekly magazine. Akane, who had admired Yuu since she was young for being beautiful, kind, and talented, felt happy living under the same roof with Yuu. However, Yuu, whom Akane adored like an elder sister, had another side that Akane didn't know about. On a quiet night, Akane, unaware of anything, slept soundly in her mosquito net, drenched in sweat, and would come to learn Yuu's true nature.
