In Jujutsu Kaisen Manga Chapter 66, Masamichi Yaga assigns Satoru Gojo and Suguru Geto a critical mission: to escort the Star Plasma Vessel to Master Tengen, a task ominously referred to as an “erasure.” While exchanging lighthearted banter about Yaga’s recent promotion, the duo grows serious when Geto inquires if the mission is meant to reset Master Tengen’s cursed technique.
Yaga clarifies that although Master Tengen is immortal, their cursed technique doesn’t stop physical aging. To prevent transforming into something entirely different — potentially beyond human comprehension — Master Tengen must merge with a compatible Star Plasma Vessel every 500 years. This vital ritual refreshes Tengen’s body, halting unwanted evolution while maintaining the strength of the barriers and cursed techniques essential for protecting the Jujutsu world.
