The Invasion of the Old Gods Starting from Kaogong

I can see tentacle monsters all over the world. The neighbor was swept away and the foster mother said he moved out. I tried to tell people, but I was put in a mental hospital. After I came out, I just wanted to write the exam questions. Because someone told me three years ago: you can leave if you pass the exam. Later I saw his back - he walked into somewhere and never came out.