The story started from a rainy night, a homeless little black cat was brought home by a young girl Luo Xiaobai, that girl named the cat "Luo Xiaohei". LXH is not an ordinary cat, it can use the closestool well but doesn't eat cat food, its long tail can be splited into multiple organisms call "Heixiu" . On the other hand, a mystery role called "Diting" now is commanding his henchmen three wolfs with wings to search for LXH. When Xiaobai bring LXH to the countryside, she finally found that Xiaohei made her involved in a variety of bizarre fantasy events...