How Are the Outer Gods Made?

When Chai Yi woke up, he came to a parallel world. [Weird] [Blessed environment] [Weird principle] [Sub-healthy state]... "You can't sleep in class? You can only eat food in the cafeteria? You're not allowed to study in the dormitory?!" "Otherwise, you will be [weirdly invaded] and your health will be reduced [completely alienated]?" Chai Yi was confused and couldn't figure out the situation for a while. It wasn't until he saw his roommate turned into a monster in Cthulhu's work that he accepted the time-travel setting. He turned on his phone and saw that the beautiful female classmate he had just added and whose name he didn't even know greeted him in the circle of friends: "Hello, Chai Yi"