"It's inconvenient, but there's a convenience store that I keep wanting to go to!" One day, a night shift worker who looked like a homeless(?) gangster(?) came into a small convenience store! Everyone is filled with anxiety because of his scary appearance, but gradually a fresh wind of change begins to blow through the convenience store. What is the identity of this mysterious nighttime worker who solves the old worries and thirst of not only convenience store colleagues but also customers...?!