Yoshinobu Gakuganji, an elderly man with a bald, elongated head framed by light eyebrows and a sharp goatee, sports facial piercings that contrast his traditional Japanese garments. He wields a wooden cane and an electric guitar, the latter channeling cursed energy through amplified sound waves for combat. As Kyoto Jujutsu High’s principal, he staunchly upholds the conservative faction’s doctrines, demanding strict compliance with jujutsu traditions. This uncompromising ethos fuels his early insistence on executing Yuji Itadori, perceiving Sukuna’s vessel as an existential risk. His clashes with Satoru Gojo, whom he deems a destabilizing force, alternate with uneasy alliances during critical threats. At the Kyoto Goodwill Event, he secretly orders Yuji’s assassination via students and a semi-grade 1 cursed spirit, prioritizing systemic stability over moral qualms. When chaos erupts from external intrusions, he swiftly shifts focus to safeguarding students, collaborating tactically with Gojo to counter the crisis. This duality underscores his pragmatic adaptability beneath rigid principles. The Shibuya Incident forces him to execute Masamichi Yaga for withholding cursed corpse secrets. Yaga’s deathbed confession—entrusting Gakuganji with the forbidden technique as a "curse"—leaves him burdened by its moral weight. Defying expectations, he conceals the knowledge from the higher-ups, signaling a fracture in his once-unyielding orthodoxy. In the Shinjuku Showdown, he supports Utahime Iori in amplifying Gojo’s power against Sukuna, later aiding in preserving Sukuna’s remains to sustain Tengen’s barriers. He further coordinates Nobara Kugisaki’s Resonance technique targeting Sukuna’s finger, reinforcing his strategic indispensability. His combat prowess merges tradition with innovation: melodies from his guitar unleash mid-range cursed energy attacks, enabling victories over Yaga and grade 1 curses despite his advanced age. Post-cataclysm, with key leaders deceased, he navigates a fractured jujutsu world, tasked with reconciling entrenched conservatism with necessary evolution—a role shaped by Yaga’s legacy and the haunting consequences of his own choices.