Lu Wu, a rookie policeman who started working a year ago, learned from his uncle that he was the only remaining descendant of an ancient family. It turns out that the creatures in "The Classic of Mountains and Seas" do exist. They originally lived in the world of mountains and seas in another dimension of the earth. Later, due to various reasons, they transformed into human forms and lurked in human society, causing unexpected turmoil from time to time. The family's unique ability allowed Lu Wu to see their true identities. After a year of familiarity, Lu Wu initially mastered the skills of handling cases, but soon trouble found his girlfriend...
