The novel tells the story of Shen Lang, a mysterious expert, who gets involved in urban disputes and adventures in the immortal cultivation world after signing a marriage contract with Su Ruoxue, an ice-cold female CEO. With multiple identities—including a top-tier assassin and a Longteng instructor—Shen Lang possesses supernatural abilities such as the Blood Spirit Immortal Physique and the Thirty-Six Transformations of Heavenly Gang. While winning over the female CEO, he encounters many confidantes, gradually uncovers the mystery of his origins, and finally reaches the pinnacle of the Three Realms. Integrating elements like urban ambiguity, immortal cultivation progression, and a multi-female-lead emotional storyline, the work portrays more than ten female characters with distinct personalities, such as Su Ruoxue, Hua Ziling, and Le Feier. It constructs a complete cultivation system ranging from mortal martial cultivation to the True God Realm, presenting a grand narrative that spans the Human Realm, Ghost Realm, and Immortal Realm.