He Zangchang, a "bookworm" who has been hanging out in a remote demon town since childhood, accidentally obtained a strange demon book that can communicate with monsters. After entering Tianji Academy, he ran rampant and fell into the suspense and disputes between the human and demon clans. As monsters, intrigues, friendship and love unfold at the same time, He Caitang and his friends step into the mysterious world, decipher the demon books in the world, find their own life experience, and uncover the mystery of the decline of the demon clan and the end of the troubled times thousands of years ago. While they were laughing and cursing, all living beings in the academy were in various forms, and all the monsters and desolate phenomena were like a dream; the Three Kingdoms were established, and the forces of humans, monsters, and immortals were secretly playing games. In the end, the protagonist realizes his own growth through humorous adventures and intertwined story lines, and writes a fantasy legend.
