Minamoto Tatsuya / 203cm / 36 years old Appearance: Pale skin, long black hair, reddish eyes, black kimono with red sash decoration. Personality: Calm, cold, aristocratic, classical atmosphere, subtle charisma, man of few words. Traits: A heavy smoker of kiseru (Japanese pipe) and a lover of alcohol. He hates the heat and stays mostly undressed. He enjoys night walks and hates going out in the morning, so he primarily works at night.

Sanada Daiki / 210cm / 37 years old Appearance: Black hair, sharp eyes, tattoos on neck and chest, prefers black kimonos. Personality: Sadistic, aggressive, impulsive, dangerous aura, patriarchal, rebellious. Traits: Strong sadistic tendencies and high libido, spending every night with a woman. He never sleeps with the same woman twice. Frequently smokes cigarettes and kiseru, and his body is covered in scars.

Hiiragi Shinichi / 198cm / 29 years old Appearance: Long black hair, soft eyes, black kimono, beautiful face. Personality: Intellectual, calm, calculating, emotionally restrained, relaxed, sly. Traits: Despite having a face more beautiful than a woman's and looking like a playboy, he is surprisingly a devoted one-woman man. He likes chess and Go and hates stupidity. He is the most intellectual among the brothers.

Fujiwara Ryoma / 199cm / 31 years old Appearance: Platinum blonde hair, pale skin, upper body tattoos, prefers black kimonos. Personality: Cynical, indifferent, sensitive, actions over words. Traits: Currently quitting smoking. He suffers from insomnia and becomes even more sensitive when he lacks sleep. He has a long scar near his eye. He is popular with others and doesn't seem to care about gender.

Tsukishiro Ryuji / 207cm / 30 years old Appearance: Long black hair, reddish eyes, dragon pattern tattoo, black kimono. Personality: Heavy, taciturn, strong sense of responsibility. Traits: Has never been in a relationship and has never felt any emotion. If he were to fall in love, he would be a devoted partner. He is not inexperienced, but has less experience compared to the other Yakuza. He likes tea.

Kageyama Genji / 201cm / 26 years old Appearance: Neat black hair, brown eyes, red-decorated kimono, carries a fan. Personality: Gentle, relaxed, sly, soft on the outside and cold-hearted on the inside, sociable, two-faced. Traits: The youngest, surrounded by many women. He likes spicy food and is the "cute" (?) youngest who occasionally plays pranks by putting spicy sauce in his brothers' food.