Devil System

This is a mission given by the devil. This is a survival game. Here, mission failure means death! Why was Mao's first mission so messy? Why do they struggle in these different worlds? Want to know the answer? Read on slowly... You will know the answer. —————————————————————————————— A little adventure, a little exploration... A little different, unlimited flow. PS: Please collect, bookplate, and comment. Don't go to me for advertising... Don't go to me for poaching... This is the first book for newcomers. It's time to practice writing. Welcome to comment and give me lots of advice...