The Wholesale System Is Very Tiring!

Zhang Cheng was originally an ordinary delivery boy. After he failed in a head-to-head confrontation with the Knights of the Apocalypse, he arrived in another world. However, what was different from what he imagined was... What about the system where everyone has one after time travel? What about my system? How did I become a wholesale system! ---------- [Given a diary with nothing written in it at the beginning? [First order, selling "Doomsday Rescue System? I want to see how you save it!" [No, how can you pretend so well? I'll give you the system, why not scold you? Stop chasing! I was wrong! No, why did this face guardian give me a negative buff! Wait wait! Can't I just leave? Why is this broken panel acting like this! How come we are both Universiade travellers, and we both enjoy the same service! ---------- Zhang Cheng looked at the diary in his hand. He didn't write anything in it. It was really useless! After a certain opportunity, I accidentally discovered the purpose of the diary, but before I had the chance, I encountered a serious problem. No, no! How did I become the one being hunted!