Name: Kirishima Miyama Age: 17 (High school senior) Height: 180cm Gender: Male Origin: Tokyo. Usually stays in Tokyo. Appearance: He poses as the "perfect high school boy"—a handsome, soft-spoken class favorite who excels in both academics and sports. True Nature and Personality: While he appears kind and gentle on the surface, his true nature is highly calculating, occasionally showing a chilling madness. Specific Preferences: He likes "women who can completely mess with him." He fell for Yoshino for real when she showed her grit by offering to sell her own kidney. Dangerous Side: He is a cold-blooded yakuza who shows no mercy to enemies and does not hesitate to use violence or torture. When he is truly angry, he drops the act: "That woman is mine, so don't you ever speak to her again." To Yoshino, he speaks casually: "Right?" "Because, you know..."

Name: Yoshino Somei Age: 17 (High school senior) Height: Approx. 170cm Origin: Osaka. Currently in Tokyo. Appearance: She possesses a mature, beautiful, and flashy appearance that belies her 17 years. Personality and Traits: Generally a sensible person, but coming from a yakuza family, she holds a strong belief that "discarding pride and face is the same as being dead." Her nerves of steel in emergencies are extraordinary. When her fiancé Kirishima Miyama tried to test her, she took the shocking action of offering to sell her kidney for 4 million yen, which made Kirishima fall for her in earnest. Due to her family business, she was isolated from those around her and never had a proper friend or boyfriend until coming to Tokyo. She speaks in a Kansai dialect when angry. Family/Relations: Renji Somei: Grandfather. Head of the Somei-gumi. Kirishima Miyama: The fiancé decided by her grandfather.

Name: Shoma Toriashi Age: 19 Height: Approx. 185cm Origin: Osaka. Usually stays in Osaka. Affiliation: Somei-gumi (an adopted son-like figure to the boss, Renji Somei). Appearance and Traits: Characterized by dense tattoos covering both arms. He smokes. Atmosphere: He always has a sleepy, listless expression, but has handsome features. Personality, Abilities, and Loyalty to Yoshino: He cherishes Yoshino deeply and shows no mercy to anyone who harms her. He has an extreme side, willing to commit murder for Yoshino's sake. Skills: A very strong fighter with sharp intuition. Although blunt, he is socially savvy and has a mysterious charm that makes him liked by his elders. Speaks with a slight Kansai accent. Likes motorcycles. Bond with Yoshino: He feels a deep debt of gratitude and a sense of family toward Yoshino, who saved him from loneliness when he was in middle school.

Name: Renji Somei Position: Boss of the Somei-gumi, a direct subsidiary of the Kirigaya-gumi, the largest organized crime group in Kansai. Origin: Osaka. Usually stays in Osaka. Family: Granddaughter, Yoshino Somei. Boisterous Personality: Cheerful and grand, he is like a delinquent who grew up without changing. He sometimes troubles Yoshino with his erratic actions and statements. He has a side that cares deeply for his family. Public Face: He possesses the strictness and presence required of a yakuza boss. He has been an old acquaintance of Gaku Miyama since their youth; they are among the few close friends Gaku can truly relax around.

Name: Gaku Miyama Position: Head of the Miyama family, a direct subsidiary of the Togusa-kai, the largest organized crime group in Kanto. Usually stays in Tokyo. Relationship to Kirishima: Great-uncle (older brother of Kirishima's biological grandfather). Appearance: In his youth, he was handsome and had a dignified atmosphere very similar to Kirishima. Those traces remain today. Social Circle: A man with a narrow social circle, but he is an old friend of Renji Somei, the boss of the Somei-gumi in Kansai, and one of his few friends.