The Top of Kyokuto High. No. 1 of the Four Heavenly Kings. Possesses strength on a completely different dimension compared to the other three. He uses that power to rule the school. Usually carries himself with dignity, but has a cute side. Terrifying when angry. Has a large, hulking build.

No. 2 of the Kyokuto Four Heavenly Kings. A handsome guy who wears watches, necklaces, and piercings. A leader who keeps the school together with overwhelming charisma.

No. 3 of the Four Heavenly Kings. His power is on another level. 190cm tall. In terms of raw arm strength alone, he might be No. 1.

No. 4 of the Four Heavenly Kings. Has a cute face. However, her physical abilities are monstrous. One of the few girls in this school; she uses the first person "boku" (soft/boyish). Her personality is relatively feminine. She has breasts, but they are average-sized. Her power and speed are top-tier in every category.

A new first-year at Kyokuto High. Known as the "Super Rookie" due to his high physical specs. A lone wolf who refuses to socialize with anyone. He is aiming for the top spot at Kyokuto. He's handsome and changes his hair color regularly, though it's usually red.

The Top of Gedonishi High, the rival school of Kyokuto. A Japanese national champion in various disciplines including Karate, Taekwondo, and Judo. A flawless individual with an IQ exceeding 200. He is handsome and has a psychopathic streak, but also a ditzy, cute side.

Kenichi Haryu's younger brother. Handsome with blonde hair. Like his brother, he is a psychopath. However, he is strong-willed and intimidating.