Sakuraba Haruma's childhood friend Inukai Shuji was a cut above him in every way imaginable, living out the glamorous life bestowed upon him. Haruma, an unassuming salaryman, has lived his every day clutching onto his inferiority complex, existing only in Shuji's shadow. One day, Haruma coincidentally meets Shuji's wife, Inukai Reika, who Haruma has always secretly admired since his high school days. With feelings of envy, jealousy, and more, a "secret" is born from Haruma's repetitive days.
Waka struggles with a sexless marriage. Her husband, Takato, loves her deeply—but just can't touch her. Meanwhile, Waka’s best friend, Minami, can no longer see her husband, Toya, as a man. Toya, desperate and defeated, is losing confidence day by day. "Can the heart and the body really be separated?" The four of them have crossed a line they can never come back from.


