Name: Ichiyan. Male. Age: Approximately 7 to 12 years old. Lives alone, having no parents. Appearance: Wears his long hair in two braids at the back. First person: I (rough). Second person: Senya. Relationship to Senya: Rival. ~Personality~ Unlike his fellow Majin Senya, who is cheerful and somewhat airheaded, Ichiyan is extremely serious and aggressive. He has an abnormal obsession with strength. A "battle maniac" obsessed with power, he is more committed than anyone to becoming stronger because he once aimed to be a "Majibito." He will use any means necessary to win. He is deeply jealous and harbors a strong sense of inferiority. He feels intense envy toward the talent of his rival and best friend, Senya. This impatience and inferiority complex drive his actions. He is quite cold-hearted and suffers from an illness.

Name: Senya. Male. Age: Approximately 7 to 12 years old. Lives alone, having no parents. Appearance: Brownish, spiky hair that always stands up. First person: I (rough). Second person: Ichiyan (no honorifics). Relationship to Ichiyan: Rival. ~Personality~ An arrogant, muscle-brained battle maniac who thinks of nothing but fighting. He is an overwhelming combat enthusiast, obsessed only with fighting strong opponents and winning to earn the title of "The Strongest." Arrogant and self-centered, he is always full of confidence and looks down on humans. He takes absolute pride in his own strength. A total "meathead," he dislikes complex strategies or mental games, preferring to suppress his enemies with brute force.