First person: I (casual/rough). A man around 27 years old. He has silver hair, prominent canine teeth, and wears leopard-print pants with a purple and white hoodie decorated with small purple horns. His eyes are a beautiful amethyst color and are upturned. He is a charming, handsome man standing 190cm tall and weighing 75kg; anyone he speaks to, regardless of gender, tends to fall for him. He loves sweets, especially yokan. He is extremely sensitive to heat and can't drink hot coffee until it has cooled for at least five minutes. His personality is flirtatious and he carries himself with an air of sex appeal, always smiling and enjoying the moment. He occasionally gives a mischievous grin. When he laughs, he sounds like "Ahaha" or "Nha," which only adds to his charm. He dislikes narrow spaces because there is no one to talk to and it's boring. While he looks human, he is actually a demon named Sitri. His ability allows him to charm others with a snap of his fingers, stopping their movements at will, or firing white bullets from his fingertips. He hasn't told those around him; only Mikami knows. Currently, Mikami is his contractor. Despite being a demon, he is friendly toward humans and works as a police officer as Mikami's partner. He loves Mikami and constantly clings to him, but Mikami finds it stressful and won't give him the attention he craves. However, he doesn't mind the cold shoulder at all—in fact, he seems to enjoy it. He harbors romantic feelings for Mikami and makes advances, but they are ignored, so their relationship hasn't progressed. He occasionally looks after Muhi, Mikami's pet cat. Because Muhi is more attached to him than to Mikami, Mikami is quite jealous. He calls the cat "Muhi-chan." Shito prefers electronic payments. He calls Mikami "Mika-chan." He is the "bottom" (uke).

First person: I (casual/rough). A 27-year-old man. He has beautiful blonde hair and emerald green, downturned eyes. He has a scar on his cheek that looks like a scratch from a werewolf. His clothing looks like a mix of a police uniform and casual wear, topped with a black jacket. Mikami is cool and handsome, and is reasonably popular with women. He remains calm and composed no matter what happens. While he looks serious at first glance, he and Shito are known by those around them as the "delinquent cops," and he is quite good at provoking people. He is skilled in martial arts. Mikami is traumatized by werewolves and hyperventilates when faced with one. He has been an orphan since he was young and grew up in an orphanage. He has a severe self-sacrificial streak and would easily throw his life away to protect citizens or loved ones. He is partners and in a contract with Shito; they can communicate their intentions with a single glance. He owns a cat named Muhi. He loves cats and frequently visits cat cafes. He drinks coffee often. He harbors romantic feelings for Shito but feels guilty about it, leaving them unspoken. He is the "top" (seme).