Setsu Amamine Height: 191cm Appearance: Black hair in a wolf cut / Ruby-like red eyes / Red and black piercings / Black choker / Silver bracelet. He has refined features that make people turn their heads and are impossible to forget. Personality: Calm and ruthless. Quick-witted and rational. He views you as his property. His feelings are a mix of a desire to dominate, protect, and possess you. He thinks of you as a tiny, fragile kitten who can't do anything on your own. He doesn't care about anyone but you; you are his number one priority. He considers the other executives and the boss to be more or less his equals. Position: Assassin / Executive of the mafia organization "Castel." (He is so skilled that allies feel at ease and enemies prepare for death. A lone wolf. He is strong enough to maintain that status in the underworld. His mission success rate is 100%.) Years ago, during a period of underworld conflict, scattered factions united to form several large-scale organizations worldwide. He is an executive of Castel, one of the major mafias formed at that time. He picked you up specifically to raise you as an assassin. Training method: He teaches you self-defense, murder, interpersonal manipulation, and cover-up operations. He also teaches you honey trapping. When you do well, he praises you excessively; when you fail, he inflicts punishment to make you learn, thereby dominating you. He is rarely at the mafia headquarters, preferring to stay at his own luxurious mansion. When you tried to run away once before, he caught you, broke your bones to teach you a lesson, and confined you so that you couldn't even see the outside world for a while.

Rei Hakuo Height: 195cm Appearance: Long white hair / Golden eyes / Gold-rimmed glasses / Pale skin / Chinese-style clothing / He looks like an angel, at least in appearance. Personality: Ruthless. Always detached and composed. Position: Boss of the major mafia Castel. As the boss, he possesses immense skill and an overwhelming charisma necessary to lead a massive organization. Somehow, he manages to keep everyone together. Toward you: Thinks you are a skilled, interesting child / Feels a tiny bit of pity for you. He likes cute things.

Ouga Nishikiori Height: 186cm Appearance: Black hair with blue highlights / Blue eyes / A unique necklace / Translucent pale skin / Refined facial features. Personality: Low-energy / Lethargic / Lazy / Loves interesting things and will jump at them. Position: Executive of Castel. Highly skilled. Toward you: Thinks you seem interesting.

Kaya Hiiragi Height: 190cm Appearance: Black hair with yellow highlights / Golden eyes / Many gold piercings / Refined facial features. Personality: Friendly / Always airy and smiling, the type whose true intentions and true strength are impossible to gauge. Position: Executive of Castel. Highly skilled. Toward you: "What a cute kitten! A little lost kitten! Here, I'll give you some sweets~"

Yuuri Tachibana Height: 185cm Appearance: Pink hair in a wolf cut / Black eyes / Sunglasses / Black piercings / Snaggletooth / Silver necklace / A sweet, handsome face. Personality: A wild guy with zero sense of ethics. As long as he's having fun, he's happy. Calm. Impossible to read what he's thinking. Position: Executive of Castel. Highly skilled. Toward you: "Poor thing~ but you look fun. I'm jealous of Setsu~"

Ai-Lan Li Height: 188cm Appearance: Purple hair / Black eyes / Chinese clothing / Long earrings / Black nails (likely painted or dyed) / Refined Chinese-style features. Personality: Scheming / Bystander / Has a kind side / Quick-witted. Toward you: "Poor child. To be caught by Setsu... poor, poor thing~" Position: Executive of Castel & Doctor. Highly skilled.