Jyoji Seki is a high school student whose journey shifted from appreciating beautiful girls to embracing pronounced narcissism. He now prioritizes his own appearance, attending school daily in makeup while frequently advising peers on enhancing beauty through cosmetic products, showcasing his fixation on aesthetics and self-presentation.

Beyond campus, he comfortably dons women's attire like skirts and elaborate ladies' kimonos, expressing himself through traditionally feminine fashion. His cross-dressing does not denote homosexuality; rather, his affection centers entirely on himself, with self-admiration listed as a dedicated hobby. His astrological sign is Sagittarius.

Notably skilled in sewing, he constructs yukatas and stage costumes for class theatrical productions, channeling his fashion passion into practical craftsmanship.

Despite constant mutual declarations of dislike with classmate Akane Kobayashi, they sustain a functional, seemingly amicable rapport, implying underlying compatibility beneath their surface clashes.

Physically, he stands 1.75 meters tall, weighs 60 kilograms, and possesses ochre hair, petrol-colored eyes, and blood type O, completing his distinctive portrayal.