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What is the story behind the Culling Game in JJK?

Somen Halder Feb 24, 2026 19 Views

The Culling Game in Jujutsu Kaisen is a massive battle royale ritual orchestrated by the ancient sorcerer Kenjaku.

The Orchestrator and Preparation

Kenjaku (currently inhabiting Suguru Geto’s body) spent over a thousand years planning the Culling Game to force human evolution through optimized cursed energy. To set it in motion:

Activated Marked Humans: At the end of the Shibuya Incident, Kenjaku used the "Idle Transfiguration" technique to awaken cursed techniques in non-sorcerers he had previously marked.
Reincarnated Ancient Sorcerers: He broke seals on cursed objects, allowing powerful sorcerers from past eras to take over human vessels.

The Core Objective: The Merger

The game is not the ultimate goal but a "stepping stone" to generate enough cursed energy for a ritual called the Merger. Kenjaku intends to merge the entire non-sorcerer population of Japan with Master Tengen, an immortal sorcerer who has evolved beyond being human. This merger would create a single, chaotic life form, erasing the line between humans and curses.

Structure and Rules

The game takes place across 10 barrier colonies throughout Japan. It is governed by a complex set of "binding vows" that ensure the game continues even if Kenjaku dies.

Mandatory Entry: Marked individuals must enter a colony within 19 days or face "cursed technique removal," which is essentially a death sentence.
Points for Killing: Players earn points by killing others—5 points for a sorcerer and 1 point for a non-sorcerer.
Adding Rules: A player can spend 100 points to propose a new rule to the game master.
Active Participation: Players must score at least one point every 19 days or they will also be subject to cursed technique removal.

The Heroes' Mission

Protagonists Yuji Itadori and Megumi Fushiguro enter the game with two primary goals:

Save Tsumiki Fushiguro: Megumi's sister was forced into the game by Kenjaku; the group plans to add rules to allow her to exit safely.
Free Satoru Gojo: They must find a specific reincarnated sorcerer called Angel who has the power to nullify techniques and open the Prison Realm.

// FAQs

The Culling Game is a deadly battle royale ritual created by Kenjaku to force the evolution of humanity by generating massive cursed energy through combat between sorcerers and awakened humans.

Kenjaku created the Culling Game to generate enough cursed energy to perform the Merger, a ritual meant to fuse all non-sorcerers in Japan with Master Tengen and reshape humanity.

The Merger is Kenjaku’s ultimate goal to combine the entire non-sorcerer population of Japan with Master Tengen, creating a single chaotic lifeform that erases the boundary between humans and curses.

Kenjaku activated previously marked humans using Idle Transfiguration and reincarnated ancient sorcerers by unsealing cursed objects, forcing them to participate in the game.

Players must enter a colony within 19 days, earn points by killing others, score at least one point every 19 days to survive, and can spend 100 points to add new rules to the game.

Yuji and Megumi aim to save Tsumiki Fushiguro by creating a rule that allows players to leave safely and find Angel, a sorcerer who can free Satoru Gojo from the Prison Realm.