Maki Tomoda is trapped in a life of misery, tied down by her deadbeat yakuza husband who contributes nothing and siphons off her meager living expenses from her part-time job, yet she can't even bring herself to hate him. One day, she runs into Hanoka, her husband's friend and the man she's secretly loved for years, who lives in the apartment across the hall. Their chance reunion rekindles old feelings, and the three of them share a warm, tender moment together. But once Hanoka learns of Maki's suffering and her husband's abuse, he confronts the man's tyranny, storms out of the apartment, and whisks Maki away to safety. From that moment on, Maki's life changes forever.