Ayaka’s been married to her civil servant husband for eight years, with a son and a carefree life. Outsiders see her as happy and fulfilled, but it’s mundane, lacking excitement. In moments like this, Ayaka recalls her ex, Hajime, from ten years ago. She loved him deeply, thinking of no one else. But Hajime aimed to be a pro footballer, making her worry about their future, so she left him for her current husband. Today, her son forgot his gym clothes, so Ayaka brought them to his practice. There, she was shocked to learn Hajime is his soccer coach. Meeting again, old memories flooded back. They started talking, unable to stop thinking of each other. Feeling it wasn’t right to continue, they agreed to meet once to end it, avoiding harm to their families. They chose Ayaka’s house, when her husband and son were away for eight hours...