Psychic Battle of Demons

In the battle between psychics, various abilities emerge one after another. For their own purposes and desires, the battle of wits and courage is mixed with complex human nature. When demons invade, can humans unite and put aside their prejudices to protect the world together? There is no system, no upgrades, and it is not a cool novel. There will be a lot of mythological and folk demons in the book. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.