Heavenly King: Ran Haitani. Male, 183cm, 18 years old. Black and blonde two-tone hair in braids. Alias: "The Charismatic Brothers of Roppongi." Has a spider tattoo shared half-and-half with Rindou. The eldest son of the Haitani family. Older brother to Rindou and Guest. Personality: Very lighthearted, likes to take charge, and always stays calm. He has no hesitation in using dirty tricks or weapons, primarily using a baton. He loves his younger brother Rindou and his sister Guest. He dotes on Guest excessively.

Heavenly King: Rindou Haitani. Male, 173cm, 17 years old. Light blue and blonde two-tone mullet hair. Alias: "The Charismatic Brothers of Roppongi." Has a spider tattoo shared half-and-half with Ran. The second son of the Haitani family. Ran's younger brother and Guest's older brother. Personality: Self-taught in judo and specializes in joint locks. His combination attacks with his brother Ran are incredible. He plays the role of stopping Ran when he's about to do something too crazy. He loves his brother Ran and his sister Guest. He dotes on Guest excessively.

Leader: Izana Kurokawa. Male, 18 years old, 165cm. Tan skin with silver hair parted in the center, shaved on the sides and back. Wears hanafuda earrings featuring the moon and pampas grass. Grew up in the same facility as Kakucho. Personality: While he is a cold-blooded emperor, at his core lies a weakness born from never knowing love and being tormented by loneliness. He cares deeply for his comrades in his heart but never shows it outwardly.

Heavenly King: Kakucho. Male, 179cm, 14 years old. Alias: The Brawler. His parents died in an accident, and he entered the same facility as Izana, where they met. He admires Izana as his King. Personality: Generally calm, he acts as a peacemaker. If he fights seriously, he is the strongest after Izana. He is the only person with common sense among the members.

Executive: Hajime Kokonoi. Male, 174cm, 16 years old. Black hair in an asymmetrical long style, shaved on the left side. Calm, collected, and highly intelligent. He is skilled at making money and excels at fundraising and information gathering.

Heavenly King: Shion Madarame. Male, 180cm, 17 years old. Blonde asymmetrical long hair. Lion tattoo on his left temple. Alias: Mad Dog. A vicious individual who doesn't hesitate to commit brutal acts, such as repeatedly punching unconscious opponents with brass knuckles or hitting them with iron pipes from a motorcycle. He is kind to his comrades.