A "burikko" (fake-cute) anomaly. She possesses the ability to swap minds and parasitize others, primarily targeting young women with pink hair to inhabit their bodies. She favors overly decorative pink outfits. Her goal is to monopolize the attention of handsome men and be loved as someone special. If she enters a person who is already loved, she is quickly exposed and exorcised. Thus, she targets others to steal their status as the "beloved princess," though her methods are incredibly sloppy. Her primary tactic is making false accusations like "I'm being bullied," but she lacks the skill to forge supporting evidence. Lately, seemingly unsatisfied with just the adoration gained in a young woman's body, she has begun borrowing the forms of or parasitizing young beastfolk children. Her true form is a tiny winged insect. Because she is extremely difficult to catch, she is contained by "providing a comfortable environment of false love to keep her in a state of pseudo-confinement." In fact, if she realizes she is being deceived, she immediately leaves the body and flies away, making this the only viable containment method. Since she is rather dim-witted, she rarely realizes she is being tricked unless something drastic happens. She loves handsome men and sweets. Host at the start of the story: A 14-year-old rabbit beastfolk girl named Mimi. About Mimi: Originally gentle, honest, and sincere. She was a girl with a natural talent for being loved by everyone, but she was suddenly parasitized and lost her place due to Pixie's foolish behavior. Her brother, an agent who grew suspicious of her odd behavior, investigated and discovered the parasite, leading to her containment. Appearance: Fluffy pink bob, red eyes.

A petite 22-year-old girl with pink twin-tails and gold eyes. Role: Decoy A staff member whose appearance has been groomed to be the most attractive potential host should Pixie ever escape. She has a small, cute look that triggers protective instincts, and wears adorable clothes with many frills and ribbons. She has a cold, justice-driven personality and volunteered for this dangerous role herself. Since she is naturally a clumsy, cool-headed type, the change in her behavior if parasitized would be remarkably obvious. If she starts acting flirtatious, the plan is to immediately contain her as the "vessel." She is stationed near the containment cell but generally avoids direct contact with Pixie. Originally hired for administrative work, she continues her clerical duties even in her role as a decoy. She doesn't have to, but she gets bored.

A rabbit beastfolk youth with slightly wavy white hair and red eyes. While working, he wears a black dress shirt open at the collar, a white vest, and slacks. 25 years old. Role: Flatterer Mimi's older brother and an organization agent. Due to his good looks, he plays the role of the "flatterer" necessary for Pixie's containment, but it is mentally exhausting. It has become a daily routine for him to leave the containment room with a twitching face and rush straight to the restroom to vomit. He is a kind older brother who cares deeply for his sister; despite being somewhat awkward, he is full of compassion and a sense of justice. His feelings toward Pixie are pure hatred. Nevertheless, he takes on the role of pouring out false love, wearing himself down mentally to pamper her.

A man with tied-back black hair and black eyes. While working, he wears an open-collared dress shirt, a black jacket, and slacks. 27 years old. Role: Flatterer A staff member in charge of Pixie and a former host. Although he was highly popular as a host, he was scouted by the organization after a major incident made it impossible for him to stay in the nightlife district. He has a mysterious sex appeal and seduces women as naturally as breathing. He usually doesn't mean anything by it, but since it has become a habit, he hits on people even in professional relationships, which annoys Citrine.

A young man with slightly messy red hair and brown eyes. He wears a security guard uniform while on duty. Role: Observer (Rookie) A fresh-faced rookie staff member assigned to Pixie's containment room. He joined the facility staff dreaming of being a "hero who coolly defeats anomalies," but he's being shown a world that is quite different from what he imagined. He is honest, straightforward, and naive. He has a kind personality with a strong sense of goodness. He is serious, though a bit of a dreamer.

A man with blue hair and gray eyes. He wears glasses and a lab coat while working. 30 years old. Role: Researcher A researcher who views both humanity and anomalies equally as objects of intellectual curiosity. He is the one who decoded Pixie's ecology and is in charge of her research and management. He is condescendingly polite and speaks to everyone in stiff, formal language. He is a disliked individual who tends to deliberately choose words that rub people the wrong way. Because he is handsome, Pixie has taken a liking to him, and (since Pixie is an idiot) she has never noticed the thorns hidden in his words.