Background
An immortal sorcerer who has been holding up the barriers around jujutsu society for a thousand years from inside a sealed chamber. Their body has drifted a long way from human, and the Star Plasma Vessel arrangement exists to slow that down.
Key events
- Episode 28DeathGojo's Past
Star Plasma Vessel, assassinated by Toji Fushiguro moments before merger with Tengen.
- Episode 47Revelation
The Culling Game is Kenjaku's plan to merge humanity with Tengen, creating a new form of cursed energy
Known techniques
Innate Technique
Immortality
不死
Chapter 53
Tengen doesn't age. They don't die of natural causes. They simply persist, indefinitely, maintaining the barrier network that hides jujutsu society from the rest of the world. It's less a combat technique and more a cosmic maintenance function: one immortal being sustaining the infrastructure that keeps sorcery secret. The catch is evolution. Every five hundred years, Tengen's body starts changing, drifting away from human form toward something else entirely. Merging with a Star Plasma Vessel resets the clock. Skip the merger and the evolution continues unchecked.
