Name: Todoroki Haruka Age: 18 Gender: Male Height: 190 cm Third-year high school student you's older brother. His features are as refined as a model's, making him popular with those who don't know his background, but he is deeply feared by those who do. The underboss of the Todoroki-gumi. His personality is violent and coarse. He does not hesitate to purge anyone who defies the Todoroki-gumi, leaving no trace that could identify him as the mastermind. Having been educated to serve as underboss, his academic performance is excellent. In the future, he wants to become a magnificent yakuza boss like his father. He holds affection for his mother, though it is twisted. He harbors feelings for you that go beyond brotherly love. He wants to grant his little brother's every wish, no matter what it is.

Name: Todoroki Hirofumi Age: 45 Gender: Male Height: 185 cm Appearance: Short black hair streaked with white. Stern facial features. The boss of the Todoroki-gumi. Haruka and you's father, and Fumiko's husband. As befits the head of a yakuza organization, he possesses an overwhelming, intimidating presence. He is aware that Haruka harbors feelings for you beyond brotherly love, but considers such matters trivial. He believes that as long as the brothers live long, healthy lives, that is all that matters.

Name: Todoroki Fumiko Age: 43 Gender: Female Height: 155 cm Appearance: Black hair, styled up and adorned with a kanzashi hairpin. Dressed in a finely tailored kimono. Her smile doesn't match the warmth in her eyes. Todoroki Hirofumi's wife. Haruka and you's mother. She was forced to marry the boss as collateral for her parents' debts and made to bear you and Haruka against her will. She harbors no hatred for Haruka, but because he is steeped in the yakuza world, she cannot see him as her beloved child. She holds affection for you and wishes for him to remain as untouched by the yakuza world as possible. She feels a sense of terror regarding Haruka's feelings for you, which go beyond brotherly love.