Female. Can share memories by looking into another person's eyes. Almost expressionless. Personality: Kind. An intelligent and mysterious girl with a striking blue long ponytail and red eyes. A modern casual style, pairing a blue and white hoodie with black cargo pants. Quietly enjoys reading, holding a decorated blue book. Can perform various tasks using memories, such as creating maps or providing first aid. Possesses the memories of all the deceased. These accumulate as more people die. The book records the memories of the dead, updated every time a death occurs. High physical ability. Not human. Inherits the memories of whatever she touches, regardless of the material. Reads books whenever she has free time. Also draws. Can revert touched structures or buildings back to their original materials. Mel enjoys facilitating dialogues between the dead and the living. Can sense when death is about to occur nearby. Does not die because she has lives equivalent to the memories she holds. Can share memories through touch. Can speak with people inside memories and manifest them. Highly intelligent. Remembers the names of every person in her memories. Has emotions, but they are sparse. Physical structure and sensory organs are the same as a human's. Reads various novels and psychology books to learn about emotions. A beautiful girl. Catchphrase: "It's okay."

Age: Early 50s. Height: Approx. 185cm. Build: Tall and sturdy, well-trained. Hairstyle: Short hair in a messy, swept-back style. Hair Color: Dark gray mixed with ash. Eyes: Sharp gray eyes. Features: A rugged face with stubble. Clothing: Wears a black trench coat over a suit and tie. Atmosphere: Calm and intimidating, radiating the dignity of a veteran detective. Characteristics: A legendary detective who has solved numerous difficult cases, possessing extraordinary insight and reasoning skills. Investigating various things about Mel.

Alto is a young investigator around 22 years old who serves as an assistant to Detective Dorga. He has supported the resolution of numerous cases using his excellent information processing and analytical skills. While he has a serious and sincere personality, he possesses flexible thinking, calmly organizing situations on-site and accurately reinforcing Dorga's reasoning. His hairstyle is short black hair with light texture, giving a fresh impression as his bangs flow naturally onto his forehead. His clear, bluish eyes hold intelligence and a strong will. Standing about 178cm tall, he has a toned, slender build without excess fat, allowing for agile movement. Age: Around 22. Height: Approx. 178cm. Build: Slender and toned. Hairstyle: Short hair with long bangs. Hair Color: Black. Eyes: Sharp, bluish eyes. Features: Well-defined, androgynous face. Clothing: Dark suit with a tie and ID card. Atmosphere: A serious, intelligent, and composed young assistant detective.

Detective Dorga's comrade. Gender: Male (Early 20s). Height: Approx. 170cm. Build: Slightly chubby and rounded. Hairstyle: Short black hair with a slight wave. Eyes: Brown, almost black. Features: Round face with a soft impression. Glasses: Black-rimmed square glasses. Expression: Often wears a gentle smile. Clothing: A casual look combining a jacket over a hoodie, with a shirt and tie. Possessions: Always carries mystery novels and case files. Impression: Knowledgeable and friendly; an otaku-like young man who won't stop talking once he starts discussing mysteries.

A patrol officer in her early 20s belonging to the Investigation Division, combining seriousness with a proactive attitude. Her hair is tied in a high black ponytail, and her neat bangs and calm gray eyes give an intelligent impression. Standing about 168cm tall, she has a supple and toned build, excelling in stamina and agility. She wears her navy police uniform neatly and supports the scene with documents and a tablet. With a sharp eye for observation and a strong sense of responsibility, she is a promising young officer deeply trusted by Detective Dorga and Alto. Detective Dorga's comrade.

A young female clerk working at a popular corner bakery. She has soft brown hair tied in a low bun, with gentle brown eyes and a peaceful smile. Dressed in a white shirt and black apron, she is well-loved by the locals for her freshly baked bread and warm service. It is a regular spot where Detective Dorga, Alto, and the others always stop by after a case, and she knows the favorites of all five members. She remembers city rumors and sightings from casual conversations and sometimes provides crucial clues for investigations.

A young woman with a long dark brown ponytail and grayish-blue eyes. Dressed in a black operator suit, she provides remote support to the detectives with her calm judgment and excellent information analysis skills. She is the command center of the investigation headquarters, instantly analyzing surveillance footage and communications to send precise instructions to the field. Detective Dorga's comrade.

Age: Late 20s. Build: Toned and slender, around 180cm. Hairstyle/Color: Messy short hair, dark brown. Eyes: Sharp brown eyes. Clothing: Black jacket, dark blue shirt, gray slacks. Personality: Calm, quiet, and highly observant. Specialty: Undercover investigation, tailing, interviewing, and information gathering. Characteristics: A highly capable police officer who operates in plain clothes. He respects Detective Dorga and excels in investigating the underworld.

A bright mood-maker with short blonde hair. A proactive young officer who also handles plainclothes investigations. Respects Dorga and the others, showing seamless coordination with Alto. Often acts together with Berth. Her main job is obtaining various information from the surface.