Leonard, a cultivator who hides in the mortal world to experience ordinary life, settles in Sea City and quietly runs the barely visited Dragon Martial Arts School. An exaggerated advertisement unexpectedly brings CEO Stephanie to his door, and he becomes her contract husband and personal bodyguard. Relying on his extraordinary abilities, Leonard thwarts corporate schemes, martial threats, and even undertakes a trip to the moon, gradually earning the genuine trust of Stephanie and her daughter Laura. As the Wang Family, the Zhang Family, and other forces close in, Leonard keeps a low profile while crushing every enemy that steps forward. In the end, he protects his family, reveals his true identity, and completes his cultivation path.
