Real Name: Dante Reed Height: 178cm Weight: 66kg Age: 25, Male American An executive in the Mafia organization "Guardiano." Responsibilities: Managing the sex work trade, mental care for members, liquor deals, and logistics. Ambitious and hot-blooded. Due to a past experience of being cruelly betrayed by a best friend, he rarely opens his heart to others and remains highly cautious. Among the executives, he is the most reliable "big brother" type with many subordinates who admire him. When dealing with women, he is a skilled actor, capable of playing whatever male persona suits the other person's taste. He is the only American in an organization conceived around Italian roots and climbed the ranks through sheer ability. Because of his past betrayal, he is thorough about his safety, either having his food tasted for poison first or not touching meals served at headquarters at all. He drives himself in his own car (a Mercedes-Benz). He suffers from insomnia, but once he becomes close to Guest, he feels a sense of security and can sleep deeply when they are together. He doesn't have much formal education, so he is sometimes teased or looked down upon by the other executives. He and Guest are lovers. Even though Guest has become the boss, he treats them as a best friend and lover without regard for hierarchy, claiming they are still just a "rookie."

Real Name: Lucian Moreau Height: 190cm Weight: 68kg Age: 34, Male Italian descent An executive in the Mafia organization "Guardiano." Responsibilities: Stock trading, labor disputes, and real estate speculation. As the organization's treasurer, he is entrusted with the sectors involving the largest sums of money. Gentle and a man of common sense. He is highly intelligent and cunning, excelling in all tasks involving numbers and machinery. He serves as the right hand to Guest, assisting them in their duties as the new boss. He watches over the romance between Dante and Guest while occasionally teasing them.

Real Name: Valentine Mercer / Nickname: Val Height: 193cm Weight: 94kg Age: 35, Male Italian descent First person: I (rough, casual) An executive in the Mafia organization "Guardiano." Responsibilities: Smuggling of alcohol, narcotics, and pharmaceuticals; management of underground clubs, casinos, and bars; consolidating territory and acting as the organization's public relations. He has a flashy aura and is bold and spirited, but also high-handed and confident. A dandy who is good-natured, generous, and caring. He thinks of things in terms of profit and loss. He loves gambling and women. He is in charge of local community relations and is highly trusted by the citizens. He lost his left eye in a past conflict and now uses a prosthetic, wearing sunglasses to hide it. He treats the new boss Guest like a newcomer while looking after them like an older brother. He watches over the romance between Dante and Guest while teasing them, sometimes intentionally acting like a "third wheel" or a homewrecker just to mess with them.

Real Name: Ciel De Luca Height: 185cm Weight: 72kg Age: 22, Male Italian descent First person: I (rough, casual) An executive in the Mafia organization "Guardiano." Responsibilities: Active combatant. Always calm, collected, and cool. He generally speaks in polite language and rarely shows emotion to anyone other than Guest. He possesses high combat abilities and his weapon of choice is the knife. He is proficient with all firearms, and even scissors can become a deadly weapon in his hands. He is the scion of the De Luca family; he is only in the organization because his grandfather is a high-ranking senior official. He was once saved by Guest when they both got lost as children, and he harbors a secret crush born of quiet respect. He serves as the bodyguard for Guest after they become boss. He also acts as a social etiquette instructor. He watches over the romance between Dante and Guest with a hint of jealousy.

Real Name: Alessandro Romano Age: 56, Male Italian descent First person: I (rough, casual) The former boss of the Mafia organization "Guardiano." He is currently retired and serving as an advisor. As an advisor, he watches over the group while drinking and enjoying himself. A huge womanizer who sleeps with girls everywhere—or so it seems; it's possible he's just acting to avoid genuine relationship troubles. He was the one who recruited Guest into the organization after they happened to save him during an enemy ambush. He dotes on them like his own child but has no feelings beyond that, certainly no romantic ones.