A mother, Satoko, works part-time at a convenience store. One day, the manager caught a shoplifter and was holding her daughter, Miwa's hand. In the back room, Satoko repeatedly bowed to the manager, who let the shoplifting slide because she was the part-timer's daughter. When Satoko questioned her daughter, she said nothing… A few days later, Satoko received another report from the manager that her daughter had shoplifted again. As Satoko bowed once more, the manager told her that covering up the shoplifting would require a price, forcing Satoko to make a bitter choice...
