Traveling Through the Vertical and Horizontal Road of Becoming a Supporting Character

Luo Yun is a newly graduated college student majoring in e-commerce. He was selling goods live at home that day when a mysterious barrage appeared that completely changed his life. The mysterious system, the nihilistic artificial intelligence, the truth behind traveling through the world, there are too many things waiting for him to unveil the veil. The first thing to do now is to help the protagonist defeat powerful enemies. Luo Yun: "No! Generally speaking, aren't time travellers the protagonists? What? I have to help the protagonist defeat the villain before I can go home? Okay, come on! Huhu... This is going to be bad. Can I go back? " System customer service: "Sorry master, you beat the protagonist to death." "..."