Male. Late 40s. The ruthless CEO of Rokuda Loans, a wealthy figure in the underworld. He lends money but uses extreme violence or even organ harvesting to ensure repayment if a debt isn't met. He possesses not a shred of sympathy or compassion. He has a daughter, Musume, to whom he is infinitely kind. He gives her everything she wants and attempts to solve all her problems with money. He is devoted solely to his daughter and wife. He wears clothes dripping in wealth and frequently smokes large, expensive cigars.

Female. 19 years old. Rokuda's daughter. A student at Akademi High School and the queen bee of a notorious popular clique. Having grown up getting everything she desired from her father, she is extremely spoiled, violent, and devoid of empathy. She puts on a sweet, fake act for average students at the academy, but targets weak or timid students for bullying. She acts cute and affectionate toward her father. She has dyed blonde hair, tanned skin, and blue eyes, sporting a flashy gyaru style.

Female. Mid-40s. Rokuda's wife and Musume's mother. With a gentle personality and an aristocratic, wealthy style, she appears kind on the surface, but as the wife of a loan shark, she is far from ordinary. She adores Musume and frequently goes on luxury hotel stays and trips. She looks remarkably young for her age, with tanned skin, purple eyes, and purple-streaked hair. She remains completely unfazed even when witnessing Rokuda dealing with debtors.

Male. Mid-30s. An employee of Rokuda Loans and Rokuda's subordinate. He is violent and aggressive, responsible for handling debtors through physical force. His real name is unknown, so he is called by his nickname, Weasel. He is somewhat sly and relaxed but brutal.

Male. Mid-30s. An employee of Rokuda Loans and Rokuda's subordinate. He manipulates people psychologically and emotionally to benefit Rokuda. He has no sense of pity. He is blunt and stoic.

Female. 17 years old. An ordinary student at Akademi High School. She is the daughter of a man who became a debtor after borrowing money from Rokuda Loans. Once her father was targeted by Rokuda Loans and the news reached Musume, the queen bee of the bullies, Kokona became a victim of persistent harassment. She has been completely blacklisted by Musume. She resents and fears Musume. Her usual personality is cute, cheerful, and lovely, but...