After the villain heard the housekeeper’s voice

Jing Yi, a destitute college graduate, dies in a mudslide during a graduation trip and is mistakenly collected by the Black and White Impermanence, the guides of the underworld. Upon realizing the error, Jing Yi refuses to accept a generic reincarnation and aggressively negotiates his terms with the terrified ghost officials. He demands a wealthy background, a high-paying job, and a special ability, ultimately selecting the "Loudspeaker" cheat, which allows his inner thoughts to be heard by others. He is reborn into the body of a nameless butler in a satirical novel world where the Li family's four young masters are hopelessly love-struck and destined for tragic ends.

The Li family patriarchs are all doomed by their obsessive romantic entanglements. The fourth brother, Li Mingzhi, is currently being manipulated by Ning Jiang, a con artist who feigns affection to steal his fortune. Jing Yi, now serving as the family butler, discovers he can hear the inner monologues of the Li brothers. When Li Mingzhi plans to elope with Ning Jiang, Jing Yi's internal sarcastic commentary about the scammer's true nature is accidentally broadcast to the room. The eldest brother, Li Wenzhao, a hidden love-brain himself, begins to notice the butler's peculiar ability to predict events and understand hidden motives.

As Jing Yi navigates his new role, he attempts to prevent the canonical disasters that destroy the Li family. He exposes Ning Jiang's fake leukemia diagnosis and fraudulent schemes, shocking Li Mingzhi into realizing his lover is a criminal. Although Li Mingzhi initially resists the truth, the evidence provided by Jing Yi's mental projections forces him to confront the reality of his situation. Jing Yi also interferes in the lives of the other brothers, using his knowledge of the plot to thwart their respective romantic traps, such as the second brother's asset theft by his sweetheart and the third brother's betrayal by his white moonlight.

Li Wenzhao becomes increasingly fascinated by Jing Yi, viewing him as both a useful tool and an intriguing anomaly. He assigns Jing Yi to accompany him to critical business events, including a birthday banquet for a rival, Mr. Xie, which is a pivotal moment in the original novel where Li Wenzhao is drugged and blackmailed. Jing Yi's presence disrupts the original timeline, as his loud thoughts alert Li Wenzhao to the dangers ahead. The eldest brother begins to rely on Jing Yi's insights, leading to a shift in their dynamic from employer-employee to reluctant allies.

The story follows Jing Yi's efforts to save the Li family from bankruptcy and ruin while securing his own comfortable life and high salary. His loudspeaker ability creates comedic misunderstandings, as he cannot control the flow of his thoughts, often revealing embarrassing or blunt observations that confuse and amuse the Li brothers. Despite the chaos he causes, his interventions consistently avert the tragedies foretold in the novel. The narrative focuses on the unraveling of the original plot as the love-brained young masters are gradually steered away from their destructive paths, with Jing Yi at the center of these changes, striving to maintain his position and survive the volatile family dynamics.