The Dark God Palace Master, whose cultivation is mostly sealed, falls on hard times among the common folk and coincidentally saves Su Tingxue, the young lady of the Su family. To shake off an arranged family marriage, she hires him at a high salary to pretend to be her fiancé and close bodyguard. The two reach an agreement to use a fake marriage to fend off the betrothal and deal with family harassment. Relying on his extraordinary discernment and medical skills, he detects Su Tingxue's hidden ailment, silently guarding and warmly assisting her in their daily interactions.