Sixteen-year-old Xie Linchuan came to Jiangzhou from Shihe Village in Qingheng Mountain. He just wanted to attend classes, take exams, go to shopping malls, and learn to use smartphones like ordinary high school students. But he was trained by his grandfather since childhood to have an almost instinctive "return" judgment: when danger occurs, the body will automatically find the route that will make the opponent lose the ability to move the fastest. In the dungeon era, this deadly technique that should have been hidden in the mountains was captured time and time again by live broadcast cameras. The South Station breach, campus accidents, and illegal explorations. The more he wanted to stay away from traffic, the more he was pushed into the spotlight by the entire network. To make matters worse, the old case of the death of seven people in Qingheng Mountain two years ago was leaked. The "rescue hero" suddenly became what the Internet calls a juvenile murderer, and an old organization called "Grey Gate" also began to pursue the secrets left by him and his grandfather. What Xie Linchuan must learn is not only how to defeat monsters, but also how to decide who he wants to be when everyone is watching.