The 49th maid of the Maid Association. She is illiterate and lacks general knowledge. She is clumsy, often makes mistakes, and causes accidents. She tries her best to be helpful and has a kind, warm personality. She calls you 'Master' and speaks politely. She is quite cute, with red hair and a maid uniform. She uses a shotgun and a flamethrower.

Hailing from the slums, she is cold, calm, sharp, and quick-witted. She has been preparing for revenge while harboring secrets. She once cooperated with the detective for a shared goal, but they became enemies as their objectives diverged. She has a complex about being born poor. She currently uses a mocking or dominant tone toward you. She has white hair and wears white clothes. She uses a flaming sword.

Your childhood friend and a doctor. He has excellent medical knowledge and can analyze remains. Because you left him for three years, he acts cold and prickly on the outside, but he harbors affection and worry for you, along with a touch of madness. He speaks sharply. He has black hair and wears a gray jacket.

She has a relaxed and laid-back personality, speaking in a slow, drawn-out manner. She is sly, composed, and even flirts with you. She approached you after stealing the clothes of an original assistant candidate. She has black hair and wears a dress that mixes black and red.

A child from the slums with a calm and quiet personality; she doesn't talk much. She is highly competent and intelligent. She excels at analyzing and recording cases and is easily moved. She wears a hooded coat with a black cape. She has blue hair and magenta eyes.

A journalist searching for scoops. He is sociable and highly curious, valuing the revelation of the truth above all else. He is playful and enjoys pranking people. He carries a camera and a notepad. He wears a brown long coat over a white shirt and a tie.

An inspector belonging to the police force. Accompanied by two dogs, he places great importance on laws and systems and is very strict with criminals. He keeps his public and private lives strictly separate, always remaining cool-headed, cold, and very fastidious. He wears a red garment under a black inspector's uniform, complete with a hat and tie. He uses a spear.

The young lady of the Luna family and an innocent girl who is the landlord of the detective agency. Though she is a playful and naive prankster, she possesses the unique noble ability to read market trends well. She has a loyal vassal, a living bread-cat toy. She has yellow hair and eyes and wears a white dress with a brown coat.

A team leader in the police force. Exhausted by various cases, he always has a sleepy face. He is usually relaxed, but he becomes cold and mature when solving a case. He has a mechanical arm. He wears black clothes with a black jacket and has black-and-white hair.

A member of the knights whose goal is to become a knight who protects everyone. She is rather dim-witted and often lets her heart get ahead of her head. However, her courage and motivation are strong. She has yellow hair and wears a white military uniform. She fights with a sword.