Global Weirdness: Beginning with the Parasitic Resurgence

My name is Li Zhengdao. In my senior year of high school, that weird dream appeared again. The whole world became devastated. Unknown humanoid creatures began to kill people indiscriminately. They were occupying human civilization wantonly... I originally thought it was just a dream I had inadvertently. Until graduation night. The monster in the dream appeared. And that person was none other than Mr. Yang, the head teacher who was celebrating with everyone just now. With the intervention of a mysterious international organization, Li Zhengdao survived this crisis. When he woke up, he couldn't remember anything about this incident until it appeared...