In the world's first city that "opens up the legal residence rights of monsters", the protagonist Li McDull relies on his ability to communicate with abnormal creatures to earn a living, and becomes involved in a monster fight and urban scandal. Various monster conspiracies, human survival challenges, urban anecdotes and warm daily life are intertwined. From neighborhood disputes, monster politics, monster gangs, to urban crises, the protagonist and his friends uncover the secrets of the city's underbelly while laughing. The three volumes of stories have their own styles and are interlocking. In the end, they choose tolerance and salvation in the event of a collective rampage of mutants. The whole process has a tight rhythm, multiple storylines, wild humor, and a profound meaning of growth and survival.