"Gonta o Korose!" is a psychological thriller manga that centers on a high school student named Gonta, who becomes the target of a deadly game orchestrated by his classmates. The narrative begins with Gonta discovering a note in his desk that reads, "Gonta o Korose!" (Kill Gonta!). Initially dismissing it as a prank, he soon realizes the gravity of the situation when his classmates begin to act on the note's directive. The story unfolds in a tense, claustrophobic environment as Gonta navigates the increasingly hostile behavior of his peers, who are manipulated by an anonymous figure.

The anonymous orchestrator, whose identity remains shrouded in mystery for much of the series, uses psychological manipulation and social dynamics to turn Gonta's classmates against him. The classmates, driven by fear, peer pressure, and personal grievances, begin to participate in the game, each contributing to the escalating danger Gonta faces. The narrative delves into themes of mob mentality, the fragility of social bonds, and the darker aspects of human nature under duress.

Gonta is portrayed as an ordinary teenager thrust into an extraordinary and horrifying situation. His character is defined by his resilience and resourcefulness as he attempts to uncover the truth behind the game and survive the relentless attacks from his peers. The classmates, meanwhile, are depicted as complex individuals, each with their own motivations and moral dilemmas. Some are coerced into participating, while others willingly embrace the violence, reflecting a spectrum of human behavior under extreme circumstances.

The plot is driven by a series of escalating confrontations and psychological battles, with Gonta constantly on the defensive. The tension is heightened by the uncertainty of who can be trusted, as alliances shift and betrayals occur. The anonymous orchestrator's manipulations are revealed gradually, with clues scattered throughout the narrative, keeping readers engaged in the mystery.

As the story progresses, the stakes rise, and the line between victim and perpetrator blurs. The manga explores the psychological toll on both Gonta and his classmates, examining how fear and desperation can warp judgment and morality. The climax involves a dramatic confrontation that forces Gonta to make difficult choices, ultimately leading to a resolution that underscores the series' exploration of human nature and the consequences of collective action.

"Gonta o Korose!" is a gripping tale that combines elements of psychological horror and suspense, offering a thought-provoking look at the dynamics of power, fear, and survival in a high-stakes environment.