Surviving the Mist: If I Step Outside, I Lose

He transmigrated into a world shrouded in mist. Bound to the Treasure Chest System. Every second spent indoors earns him a treasure chest. To get more chests, Ding Jiu decides to stay inside till the end of time. Then, using demi-human s*aves bought from a s*ave merchant, he builds a demi-human empire that belongs solely to him.