Another World Devil Express

He was reincarnated into the strongest demon, possessing endless power and an army capable of destroying the world. My father also has high hopes for me, hoping that I can conquer the world and let the devil rule the earth again. But I used this invincible power to open a... Courier company. Times have changed, are you good at fighting? There is no point in beating you. If you come out to hang out, you have to make money. The only way is to make money. Making money is the way to go. And I must use legal means to become the richest devil in the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.