The evil girl returned from rebirth and just wanted to make a living, but she was forced to inherit a canteen that only opened at midnight. However, the guests who come to visit are all strange: a socially terrified mandrill, a depressed koi, a fox fairy who encounters a PUA in the workplace... She originally wanted to stand by and watch, but is forced to cure these monsters' "urban diseases" with a bowl of hot soup and a dessert, but in the process, she accidentally redeems herself from her previous life. Until the cold-faced administrator in charge of all the monsters also started clocking in on time every night...