The Otherworld's Old Six System

Wang Sheng, a 996 office drone with talent and cunning but no luck, transmigrates to a magical world after a car accident, bringing along a Protagonist-Antagonist System.

But who knew it would be such a troll? What do you do when a mission fails? Choose between losing lifespan or having your manhood shrink!

How is the protagonist so overpowered? Other people's antagonist Systems hand out cheat abilities, but yours makes you do missions, and they're all hell-level difficulty. How am I supposed to manage? I can only play dirty through my tears!