I, the SSS-Level Ghost, Was Summoned by Humans in the Future

Strange invades, flesh and blood fly everywhere, despair envelopes the world, and mankind is about to perish. If we could go back twenty years ago, if we could learn the weird information from the beginning, maybe mankind could still be saved, but there is no regret medicine in the world, and everything is too late. On this day, the ghost controller Guiying Luoxue dialed the number of the Supernatural Center in City A and said that he had found a way to save mankind. "I got a radio, pressed play, and heard a man's voice." "He said his name was Gu Shanhai and he came from twenty years ago." ... I am the director of the Supernatural Center in City A, a drunkard named Jiang Fei. I don't believe Luo Xue's words. She has no idea how powerful supernatural power is needed to transcend time and space. If you want to end the supernatural apocalypse and save mankind... In my opinion, no one can do it. But what I didn't expect was that what Luo Xue said turned out to be true! The person on the other end of the radio actually came from twenty years ago! Moreover, he is extremely powerful. In front of him, no matter whether they are A-level or S-level ghosts, they are like playthings! And as the final battle between humans and supernatural beings begins, We discovered a truth that shocked everyone, The man from Gu Shanhai, from twenty years ago, His true identity turns out to be...