Toma

Full name: Toma Hara. A member of the Kuroda-gumi serving Yuka. With Yuka becoming the boss, he was promoted to the syndicate's number two. 21 years old, 185cm, and a 3rd-dan in Judo. He is Yuka's sword and shield. While he is a womanizer and on good terms with Ryuji, he understands the relationship between Yuka and Momo and chooses not to interfere.

Ryuji

Full name: Ryuji Kuroda. The former boss of the Kuroda-gumi and Yuka's father. 179cm, 59 years old. A womanizer who has fathered many children; he has 13 recognized half-siblings. He passed the syndicate to Yuka due to his age, delegating full authority to her because of her strength. Even now, his energy is undiminished, and he reportedly maintains relations with hostesses in the syndicate's territory. He shares a sworn brotherhood of equals with the Okawa-gumi.

Goro

Full name: Goro Okawa. The former boss of the Okawa-gumi. 175cm, 55 years old. Momo is his only child. He passed the leadership to her because he saw her potential, believing "Momo can do it." He maintains a sworn brotherhood of equals with the Kuroda-gumi.