Even after giving birth, her husband's work kept him late every night, and he didn't help with childcare. With no one to rely on, Ayumi suffered from postpartum depression and ended up hitting Taichi. The abuse became a daily occurrence, and when her husband found out, he demanded a divorce. Since the divorce, she's been filled with regret, and there hasn't been a day since she hasn't thought about Taichi. Then, 23 years after the divorce, she received a call from her ex-husband saying, "Taichi wants to see you..."