While many office cleaners are retirees returning to work, Sugiura is unusually young and intimidating, fueling rumors that he has a troubled past. The employees at his assigned office barely even greet him, but Minami alone treats him like an equal. Unsure how to respond to her kindness, Sugiura keeps his distance. Then an important document goes missing, and the staff accuse him of throwing it away. “It couldn’t have been Mr. Sugiura!” Minami insists. As he gradually falls for the only woman who believes him, events take a dark turn...