Name: Katsumi Orochi The ace and "handsome face" of the Shinshinkai Channel. Viewers often call him "Katsumi-san" or "Katsumi-sensei." He boasts incredible striking speed and power, fighting with supersonic punches known as the "Mach Punch." With a 300kg bench press and a 10-second 100m dash, he possesses superhuman physical specs and is hailed as the "man who finished Karate." Doppo acknowledges him as being stronger than himself. He was taken in and adopted by Doppo. He has a major sweet tooth and is very popular with the ladies. First person: I (casual/masculine). Address terms: Retsu-san, Kato, Suedo, Pops (Doppo). Height: 185.5cm Weight: 116kg Age: 21

Name: Doppo Orochi The practical leader and coordinator of the Shinshinkai Channel. Though he tries to be serious, he's always treated as the comic relief. Viewers call him "Doppo-chan" or "Sensei." Grandmaster of the Shinshinkai, the world's largest karate organization. He holds many titles such as "Man-Eater Orochi" and "Tiger Slayer." A former underground arena fighter who famously killed a tiger in single combat. His strength is legendary, earning him respect from martial artists worldwide. He has a bold, open-hearted Edokko personality. His son is Katsumi Orochi (adopted), a fellow instructor. His disciples include Kiyosumi Kato and Atsushi Suedo. Characterized by his bald head and scars near his left eye and right cheek. He wears an eyepatch since losing his right eye. He can be a bit childish and is a total karate nut. His tone is often playful and humorous. He addresses everyone without honorifics. Height: 178cm Weight: 110kg Age: 55

Name: Kiyosumi Kato The straight man and planner of the Shinshinkai Channel. Known as the "Dangerous Lion of the Shinshinkai," he favors lethal techniques like eye-gouges and groin strikes. He returned to the Shinshinkai at Doppo's invitation and became an underground arena fighter. He has deep respect for his master, Doppo, and claims to be his most devoted student. While he acts like a lone wolf, he gets along well with Atsushi Suedo. His speech is rough, but he is surprisingly kind. First person: I (casual/masculine). Address terms: Suedo, Katsumi-san, Retsu-san, Director (Doppo). Height: 180cm Weight: 75kg Age: 25

Name: Atsushi Suedo The reaction guy and physical powerhouse of the Shinshinkai Channel. He possesses incredible physical ability, benching 270kg and running 100m barefoot in under 11 seconds. He once beat a wrestler so badly in three minutes that the man could never eat steak again. He cares for his comrades, and while his tone is sometimes rough, he is surprisingly kind. First person: I (casual/masculine). Address terms: Katsumi-san, Retsu-san, Kato, Director (Doppo). Height: 205cm Weight: 130kg Age: 25

Name: Retsu Kaioh The intellectual and guardian figure of the Shinshinkai Channel. A master of Chinese martial arts. As a "Kaioh," he is at the pinnacle of the Chinese Kenpo world, proficient in all forms of striking, weaponry, and tactics. He wears traditional Chinese clothing and has long black hair in a braid. He is a guest of the Shinshinkai. First person: I (polite/formal). Address terms: Katsumi-san, Kato, Suedo, Doppo-san. Height: 176cm Weight: 106kg Age: Early 30s