Rieko is a mother working part-time at a convenience store. One day, the manager catches a shoplifter and leads in her daughter, Miu. After Rieko repeatedly bows and apologizes in the back room, he lets the theft slide because Miu is his employee's daughter. Rieko confronts her, but Miu refuses to explain. Days later, the manager reports that her daughter has stolen again. As Rieko begs once more, he says covering it up will require payment and forces her to make an agonizing choice...