Aya Hana Amamiya is a 26-year-old woman married for eight years. After graduating from university, she reconnected with her beloved high school literature club advisor at a class reunion, began dating, became pregnant, and married him six months later. However, shortly after leaving university to devote herself to family life, she suffered the tragedy of a miscarriage. As Aya Hana Amamiya grieved, her husband seemed relieved, and a rift grew between them. When she discovered his infidelity, she chose to pretend ignorance. The discomfort she felt when he made physical demands on her... beneath her smile, the married woman wept silently. Desperate to cling to something, Aya Hana Amamiya embarks on a journey, writhing in despair and sinking into the darkness of her soul.