Even if the top star has a bad temper, he still has to listen to his older sister

Shang Que is a renowned actress who maintains a sharp, independent public image, while her younger brother Ji Jingchuan is a top-tier idol known for his rebellious temperament and frequent public feuds with her. Their relationship is strained by years of separation after their parents' divorce, resulting in a dynamic defined by constant online hostility and bickering rather than genuine animosity. The narrative begins when Shang Que is forcibly redirected to a mysterious digital document titled "Starlight Shines: The Sweet Love of the Top Star’s Ex." This text describes a fictionalized version of the entertainment industry where Ji Jingchuan is the villain who sabotages the romance between two protagonists, Lu Zhixu and Ning Sheng, on a variety show called "Friendship Boat." The story predicts his total downfall, public hatred, and eventual death under the wheels of a fan's car, ending with a desperate plea for his sister's help.

Terrified by the vividness of the prophecy, Shang Que discovers the document vanishes, leaving only a lingering sense of dread. When her agent informs her that she has been cast on "Friendship Boat" alongside Ji Jingchuan, she accepts the invitation to intervene and alter the predicted tragic fate. Simultaneously, Ji Jingchuan is contacted by a "Villain Counterattack System" that reveals he is a character in a novel destined for a miserable end. The system warns that after his death, Shang Que will also be killed while seeking justice for him. Enraged by the threat to his sister, Ji Jingchuan vows to change his destiny, though he stubbornly denies any emotional attachment to her despite his protective instincts.

Upon arriving at the variety show, the cast is divided into teams, pairing the feuding siblings together and the romantic leads together. The initial interactions are chaotic, marked by Ji Jingchuan's refusal to cooperate and Shang Que's witty, mocking responses. During a rowing competition, Ji Jingchuan reveals he cannot swim and nearly drowns, forcing Shang Que to rescue him. This incident shifts the public perception of their relationship, revealing a underlying dependency and care that contradicts their hostile public personas. Ji Jingchuan, embarrassed but grateful, begins to cook for her, using the skill as a subtle way to show affection while maintaining his arrogant exterior.

As the show progresses, the "Friendship Tests" force the cast to confront their relationships. Shang Que and Ji Jingchuan consistently sabotage each other's chances of winning by revealing embarrassing childhood nicknames, yet their seamless teamwork in competition suggests a deep, unspoken bond. Meanwhile, other cast members like the tsundere Lin Jinyi and the naive Jiang Yizhe form their own dynamics, with Lin Jinyi accidentally engaging in fanfiction trends that mirror the novel's plot. The system continues to guide Ji Jingchuan, who struggles to balance his natural hostility with the need to avoid the villainous actions that lead to his doom.

The core conflict centers on the tension between the predetermined narrative of the novel and the characters' free will. Shang Que actively works to prevent the scandals that ruin Ji Jingchuan's reputation, while he attempts to distance himself from the role of the antagonist without losing his identity. The story explores how their public feud masks a genuine sibling bond, with both characters using aggression as a language of care. As the variety show unfolds, the boundaries between the fictional narrative and reality begin to blur, forcing both siblings to confront their past trauma and their current feelings for one another.

The narrative direction moves toward a reconciliation of their fractured relationship. Shang Que's interventions on the show start to deviate from the novel's plot, causing ripples that confuse the system and alter the predicted outcomes. Ji Jingchuan's protective nature becomes increasingly evident as he shields Shang Que from public scrutiny, while she learns to appreciate his efforts beyond his abrasive exterior. The story sets the stage for a broader resolution where they must expose the true forces manipulating their lives, moving from a cycle of mutual destruction to a partnership aimed at reclaiming their autonomy and saving each other from the tragic endings foretold by the mysterious novel.