23 years ago, Chiaki gave birth to Hiroaki but became neurotic from child-rearing and started abusing the child. Eventually, her husband found out and demanded a divorce, taking Hiroaki with him. After the divorce, she was filled with regret every day, not a single day went by without thinking about her son. She wanted to see Hiroaki but thought she had no right to. One day, she received contact from her ex-husband: 'Hiroaki wants to see you.' Chiaki hesitated but decided to meet just once and headed to the meeting place.
