Yuri spends each day with her husband, building a busy yet warm household. However, her neighbor Igarashi suddenly loses his job, gets kicked out by his wife, and is forced to leave his home. Learning of his predicament, Yuri feels deep sympathy for Igarashi's plight and kindly offers him support. Taking advantage of her kindness, Igarashi forcefully initiates a physical relationship with her. Though Yuri's mind resists and condemns Igarashi's actions, her body gradually begins to crave him, plunging her into overwhelming desires she can no longer control...