Wealthy, gorgeous, and widowed—I'm the ultimate Omega!

Xi Xiuran, a mundane office worker confined to home quarantine, discovers a novel featuring a character with his name and dies of boredom while reading it, only to transmigrate into the body of the cannon fodder supporting character who shares his identity. In this new reality, he is the eldest son of the wealthy Xi family, an Omega who was abandoned on a remote planet after his mother’s death. Upon waking in the Xi mansion, he finds himself accused of poisoning his younger brother, Xi Mengchen, the novel’s protagonist. The family patriarch demands that Xi Xiuran take his brother’s place in a marriage swap to atone for the crime, forcing him to marry the comatose Admiral Shi Xingzhou instead of the intended fiancé, Major General Ying Huachi. Rather than despairing, Xi Xiuran recognizes the opportunity: in the original story, the Admiral dies within a month, leaving his massive inheritance to the surviving spouse. Viewing this as the ultimate path to a lazy, wealthy life, he eagerly accepts the arrangement.

Xi Xiuran travels to the Admiral’s manor, where he is immediately subjected to hostility from the staff, particularly a maid named Emily who works for the Eldest Princess Theresa. Emily attempts to trap Xi Xiuran in a room with the Admiral while he is experiencing a violent Mental Sea riot, intending for him to be killed. However, Xi Xiuran discovers that he is immune to the Admiral’s pheromones and Mental Power, finding the scent pleasant rather than overwhelming. He calmly cleans up the shattered glass and even feeds the unconscious Admiral nutrient solution, completely unaware that Shi Xingzhou is actually awake and observing his every move. When the Admiral finally reveals he was conscious the entire time, he is amused by Xi Xiuran’s candid thoughts about becoming a wealthy widow and his lack of fear.

The conflict escalates when Princess Theresa arrives, having been summoned by Emily to witness Xi Xiuran’s demise. She attempts to frame the young Omega for demanding a divorce and insults his background. Shi Xingzhou, however, publicly defends Xi Xiuran, revealing that he heard all of Xi Xiuran’s private mutterings and dismissing Theresa’s accusations. He orders Emily to be punished according to military law for forging orders, effectively neutralizing the immediate threat. Theresa, terrified of the Admiral’s wrath and pressured into returning a valuable jade ring she had promised to the protagonist couple, leaves in disgrace. Shi Xingzhou then gifts Xi Xiuran the imperial wedding presents, signaling his acceptance of the marriage.

As Xi Xiuran settles into his new role, he continues to pursue his goal of a peaceful, luxurious life, enjoying the amenities of the manor and ignoring the political intrigues around him. Meanwhile, Shi Xingzhou begins to investigate the circumstances of his marriage and the true nature of Xi Xiuran’s personality, finding the Omega’s straightforward and unpretentious demeanor refreshing compared to the scheming nobles he usually encounters. The story shifts focus to the underlying medical mystery of Shi Xingzhou’s condition; he is not merely suffering from war trauma but is entering the rare Mental Riot Phase due to his SSS-rank Alpha status, a condition that requires a specific Omega with high compatibility to survive. Butler Wang, the Admiral’s loyal servant, suggests that Xi Xiuran might be the key to saving his master’s life, planting the seeds for a deeper bond between the two men that transcends the initial transactional nature of their marriage.

The narrative establishes a dynamic where Xi Xiuran’s desire for a quiet life clashes with the escalating political and personal challenges posed by his former family and the imperial court. While he attempts to maintain his "salted fish" lifestyle, Shi Xingzhou’s growing interest in him and the necessity of their partnership for the Admiral’s survival create an inevitable convergence of their fates. The story moves toward a resolution where Xi Xiuran must navigate the dangers of the imperial court and his own family’s schemes while uncovering the truth behind the novel’s plot, all while the Admiral’s condition becomes increasingly critical, forcing the reluctant couple to rely on each other for survival.