Looking at the present at any stage in the past, one would think that this was the golden age - the end of the largest war in the history of civilization. Humans, monsters, vampires, and werewolves signed a permanent peace covenant. After more than ten years of peace and harmony, it seems that the future will continue to be peaceful and peaceful... Life experience The mysterious Zhou Ze (human) learned the news that he had a twin sister on the eve of entering college. This relative who appeared out of thin air did not seem to be a human being. College life has also added a new task; and Pan Chengkai, a good gay friend and college classmate, did not live a peaceful life either...