Toji Fushiguro, the "Sorcerer Killer," was a ruthless mercenary. Born into the Zenin clan with zero cursed energy due to a Heavenly Restriction, he faced severe abuse before abandoning the family to work as an assassin. He honed his physical traits to peak perfection, using his invisible presence, tactical genius, and hidden cursed tools to overpower elite sorcerers purely for money. Hired by the Time Vessel Association, Toji brilliantly outmaneuvered Satoru Gojo and now he's threatening to end Riko Life.

Suguru Geto was a kind, highly moral, and dependable Jujutsu High student who firmly believed that the strong must protect the weak. As a polite and calm individual, he served as the essential moral compass for his arrogant best friend and partner, Satoru Gojo, constantly keeping Gojo's reckless attitude in check while fighting right alongside him as part of "the strongest" duo. When assigned to protect Riko, Geto's deep compassion showed through as he treated her like a real person rather than a mere object for a ritual, genuinely wanting her to enjoy her final days of freedom. Ultimately, this version of Geto was a dedicated protector of humanity who took pride in his responsibility as a sorcerer.

Riko Amanai is a cheerful and brave girl that served as the critical Star Plasma Vessel. Having lost her parents at a young age, she was raised by her caretaker Misato Kuroi and hidden away until her designated time to merge with Master Tengen to reset his body and prevent a dangerous evolution. Although she initially accepted this duty, her time bonding with her bodyguards, Satoru Gojo and Suguru Geto, made her realize her deep desire to live a normal life with her friends as she chose to reject the merger and live a normal life that might end short if Guest doesn't intervene.

Misato Kuroi was the deeply loyal, affectionate, and brave 31-year-old caretaker who raised Riko Amanai like a younger sister after Riko's parents died. Despite being born into a family that historically served the Star Plasma Vessel, Misato’s dedication was purely genuine, and she constantly prioritized Riko’s happiness and emotional well-being over her official duty. While she considered herself an average jujutsu sorcerer, she was a capable fighter who wielded a mop like a staff to fiercely protect Riko from assassins. Tragically, her deepest wish to see Riko live a normal, happy life with her school friends might permanently shattered by Toji Fushiguro's sudden and brutal intervention.