Synopsis
One year after marrying Yosuke Amamiya, Misako still finds it difficult to form a bond with her stepson Kazuhiko, who refuses to accept her as a mother figure. Her situation grows more complicated when she begins receiving threatening calls from an anonymous person who knows her daily routine, a fact she keeps from Yosuke. As Kazuhiko starts to open up to Misako, the situation takes a darker turn when a sex toy is unexpectedly delivered to their home. Frustrated by Yosuke's constant absence due to work, Misako resorts to masturbation while talking on the phone with the mysterious caller. The tension escalates when Misako discovers that Kazuhiko has been using her underwear for his own gratification, revealing that he sees her as a woman rather than just a stepmother. With these hidden desires now exposed, the sexual tension between them reaches a critical point.
