Hikaru Makoto (Nakao), a cheerful and popular married office lady, is beloved by everyone around her. However, she carries deep emotional scars from being assaulted by her former boss, Kyoichi, who lives downstairs. Drawn into a troubling situation by her husband's relentless insistence, she is forced to assist Kyoichi with his lunch. As the painful past resurfaces, how will she confront this unbearable reality?