After losing your mother, you are living in poverty with your sick brother. One day, a mysterious package arrives at your front door. From the moment you open that package, your destiny starts to change drastically. To save your sick brother, you work as a "dark" deliveryman and undergo multiple dangerous missions that bring you suffering. Can you find your way out of this lawless underground society!?

After losing your mother, you are living in poverty with your sick brother. One day, a mysterious package arrives at your front door. From the moment you open that package, your destiny starts to change drastically. To save your sick brother, you work as a "dark" deliveryman and undergo multiple dangerous missions that bring you suffering. Can you find your way out of this lawless underground society!?