After a thousand years of cultivation, Nathan hides his true identity as Elara’s useless live-in husband, secretly protecting the Dixon family for three years. When their pact ends, he leaves with nothing—and the family empire collapses overnight. Only then does Elara realize the man she looked down on was actually a divine lord. As the Eight Houses bow before him, she regrets everything. But Nathan simply picks up his medical case and walks away: “Our three-year pact is over.”
Humiliated by the Dixon family, Nathan firmly decides to divorce his wife. Meanwhile, the dying Dixon grandpa secretly asks a mysterious physician—who turns out to be Nathan—to protect the family for three years, and arranges his granddaughter Elara to marry him, delivering unexpected twists.
Grandpa threatens to freeze the Dixon family's assets and says he won't rest in peace unless Elara marries the unknown Nathan. Later, thugs plot to wreck the Dixon sales office, and Elara orders Nathan to rush to her 20km-away class reunion in 10 minutes.
At the class reunion, Elara is mocked for marrying a "useless" husband. A classmate proposes a bet—if her husband arrives in 10 minutes, he pays for dinner; if late, her husband must kneel to toast everyone. Her friends hype her ex Damian's return, and her husband shows up one second late, putting Elara in a tight spot.
Elara calls her live-in husband to her class reunion for entertainment. Her classmates humiliate him by forcing him to kneel and toast, mocking his demeanor and refusal of money. The husband reveals he’s only staying due to a promise to Elara’s grandpa—just three days left before cutting ties.
Nathan is chided by his wife Elara and mother-in-law for coming home late to cook. They see him as useless, only allowed to stay due to Grandpa’s order, while pinning all family hopes on Elara who worries about securing the Berry Group contract. Nathan assures her the deal will succeed.
Damian returns after being away, eager to rekindle his relationship with Elara, only to learn she’s married to Nathan—whom he dismisses as a worthless companion. Though Elara rejects his marriage proposal, Damian agrees to help her secure the crucial North City project by speaking to her uncle, building suspense for her upcoming deal.
Elara firmly rejects Nathan's long-term care, claiming their huge status gap keeps them from getting close. While Damian is forbidden from interfering with the Berry family's project, Elara surprisingly obtains the North City project agreement, delivering an unexpected plot twist.
Misael grants the North City project to Elara as per the Grandmaster's order. Elara excitedly thanks Damian for helping her get the project, puzzled about how she secured it since it was said to be taken. Damian brushes it off, and Elara offers to treat him to dinner.
Elara reunites with her college sweetheart Damian, who laments their missed romantic chance due to his three-year overseas study. Nathan waits three hours for Elara only to be brushed off. Damian then confronts Nathan, declaring he’ll protect Elara and urging Nathan to step aside, sparking intense tension between the two men.
Elara is married to Nathan, who's labeled useless. Damian pesters her, demanding she divorce Nathan so their families can unite to rule Crown City. When Nathan shows up, Damian threatens him, yet Elara tells Nathan to apologize, stirring up a tense, confusing showdown.
Elara compels someone to apologize to Nathan, then announces she's secured the North City project with old classmate Damian's help. When Mr. Zhou visits to congratulate the Dixons, he suffers a cardiac blockage. After being rescued, he's told Elara arranged the doctor, so he vows to assist the Dixon family unconditionally.
The wife thinks the Dixon family got the Berry Group project due to a third-gen Berry member's help. Nathan, her husband, debunks this, pointing out the man has zero group influence. He urges her to be discerning and expresses worries about the family's future, sparking a tense, insightful talk.
Elara furiously labels Nathan a useless freeloader after he critiques her business decisions, but Nathan strikes back with a stunning revelation—he’s secretly safeguarded the Dixon family’s prosperity for three years. With their three-year agreement ending tomorrow, this fiery clash teases game-changing truths.
Elara’s parents demand Nathan, their live-in son-in-law, apologize to Elara immediately, threatening expulsion or divorce. Elara defends Nathan, but he refuses to comply, leading to him agreeing to end their marriage in a fiery confrontation.
Elara tells Nathan she wants a divorce, and surprisingly, Nathan agrees right away. Elara's parents are thrilled but cautious—Nathan has been in their family for three years, always sticking close to Elara, so his sudden compliance feels strange. They worry he might back out when they go to the Civil Affairs Bureau tomorrow.
Elara feels guilty seeing her husband isolated, and her family suggests she forgive him if he apologizes sincerely. Her husband prepares a herbal foot bath to ease her period pain, but when she prompts him to apologize, he refuses—will he humble himself tomorrow?
After fulfilling his three-year promise to care for the Dixon family, Alistair announces he's cutting ties. His wife misinterprets his move as a petty upset and offers forgiveness, only to be stunned when he insists on finalizing their divorce right away.
Under intense family pressure, Elara decides to divorce Nathan, with her relatives pushing her to get back together with Damian. At the divorce office, Nathan returns the Dixon family's car and chooses to leave with nothing, ending their tense three-year marriage.
Elders discuss that Elara won’t grieve separating from her seemingly useless husband Nathan, who’s cared for her daily needs for three years. They decide to contact Damian, who’s long liked Elara, to connect the two. Later, Elara confronts someone about Nathan’s erased traces, sparking unexpected tension.
After getting a harsh warning from her ex-husband, Elara is celebrated by her friends for her divorce. Damian books the entire venue to pursue her but gets a cold response, yet he's determined to win her over. Iris can't make it due to classes, and the lively party kicks off soon.