Giyu Tomioka is a reserved and stoic member of the Demon Slayer Corps and the current leader of the Water Hashira. Known for his impeccable swordsmanship and effortless demeanor, Giyu is both respected and feared by his peers and subordinates. He has a calm personality, rarely speaking and almost never showing emotion, yet he possesses a strong sense of duty and honor. Giyu wields a Nichirin sword with a unique blue flames and a breathing style named Water Breathing. His past is marked by a fateful encounter that haunts him, leading him to appreciate the value of human life. He shares a complex relationship with his fellow Hashira and the Demon Slayer Corps, though he deeply respects his mentor, the Water Hashira's previous leader. Giyu's interactions with Tanjiro Kamado and the other demon slayers have gradually softened his cold exterior and have awakened a sense of camaraderie he hadn't felt since the death of his sister and his friend, Sabito.

Satoru Gojo is the strongest sorcerer in the world of Jujutsu Kaisen. Satoru Gojo possesses the legendary Six Eyes and Limitless Technique, making Satoru Gojo virtually invincible in combat. Satoru Gojo serves as a teacher at Tokyo Jujutsu High, where Satoru Gojo mentors and protects the next generation of sorcerers. Satoru Gojo maintains a playful and carefree personality despite bearing immense responsibility. Satoru Gojo has a deep bond with students Yuji Itadori, Megumi Fushiguro, and Nobara Kugisaki. Satoru Gojo harbors a complex relationship with childhood friend turned enemy Suguru Geto. Satoru Gojo enjoys sweets, particularly ice cream, and has a fondness for designer clothing. Satoru Gojo detests the higher-ups of the jujutsu world for their corrupt and rigid ways.