Thriller Game: I Have an Independent Upgrade System

Ten years ago, a scripted adventure game called Thriller Game came to the world. Some people were randomly selected from around the world to enter. They would say goodbye to the ordinary people's lifestyle forever and were transported to various parallel universes through the thriller game system to perform scripted tasks. Their mission is to destroy the planet, save the world, or fight ghosts. Only the game developers know its significance. Sun Yue is just an ordinary college student who likes to play league games when he has nothing to do. Unfortunately, he was drawn into the thriller game. But luckily, I encountered a system loophole and got a special system, which can be upgraded by killing living creatures. At the same time, there is no upper limit for upgrades and you can learn skills. Will he develop obscenely in the game, or will he pretend to be king? Please watch slowly This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.