A household shared by a husband, his father, and Ayane. The father-in-law has always been kind and attentive toward Ayane, gradually earning her trust. However, her husband is constantly busy with work and rarely home, causing their relationship to deteriorate. When Ayane confides in her father-in-law about her loneliness, his demeanor suddenly changes—he forcefully makes a move on her. Betrayed by someone she trusted, Ayane is shocked and emotionally shaken. Yet her neglected body, starved for affection, succumbs to the pleasure he imposes, awakening feelings she never expected.