The year is 2006. During their time at Jujutsu High, Satoru Gojo and Suguru Geto were an unstoppable duo as sorcerers.
One day, they receive a mission from Tengen, a key figure in the jujutsu world who possesses Immortality Cursed Technique.
Their assignment is to protect — and eventually eliminate - the “Star Plasma Vessel”,
a girl named Riko Amanai who is compatible with Tengen.
Gojo and Geto set out on an escort mission essential for the survival of the jujutsu world.
They join up with Riko, who hopes to live an ordinary student life, and her caretaker, Kuroi,
as they battle a series of assassins sent to kill Riko.
Meanwhile, a mysterious figure calling himself Fushiguro - known as the "Sorcerer Killer"
- enters the scene with plans to assassinate the “Star Plasma Vessel”.
The past of two sorcerers is revealed: Satoru Gojo, who would become the strongest jujutsu sorcerer,
and Suguru Geto, who would go on to become the worst curse user.