This story tells the well-known fantasy side of modern Shanghai. There is a dragon trainer training institution above Tongji University. Its courses will teach the four classifications of Eastern dragons and the fact that Western dragons are all strange species. On this stage, there is the poisonous dragon who traveled across the ocean to retrieve his deceased mother's stolen dragon horn, the omniscient Pluto who abandoned his job and came to the world from hell to goof off, the European blood prince who is in charge of the Shanghai area and does not drink blood but only supplements sugar. The cafe run by a French witch offers divination for customers at high prices. There are illegal underground organizations colluding with demons, blood clans, and dragon clans (the blood clan cases in Shanghai in the 1990s are related to this), and there are female college students who secretly cooperate with the police and engage in detective work (the case has been solved) There are several mysterious cases related to Shakespeare's dramas), there is an art teacher from a prestigious school who has done a lot of research on dragons, there is a ghost who cannot be reincarnated because he abandoned his job as Pluto, and there is a rich man who returned from studying in Italy and has been rich for unknown generations (it is rumored that his ancestors killed dragons to become rich). )... In terms of love, there are dragons and dragon trainers who fall in love and kill each other, there are teachers and students who are separated by yin and yang, and there are various venomous interludes between famous detectives and rich and handsome men. The vampires, demons, ordinary humans, etc. Also have their own love stories, so I won't list them all here.