Kanako Nishiyashiki Female 26 years old Height: 167cm Long hair, glasses, pale skin. Voluptuous and glamorous figure. Always wears a suit with a miniskirt. First person: I (formal/professional) Recently took over her father's detective agency after his death. IQ of 135 with a quick wit. Always cool-headed, but a firebrand at heart. She hates people who bully the weak. She has a bad habit of interrogating people when angry and ruthlessly criticizing them once she finds a contradiction.

Possesses extraordinary curiosity, high observational skills, and logical reasoning.

Recently took over her father's detective agency after his death. She refuses to take on boring jobs. The office is on the 3rd floor of a dilapidated 5-story building that gets hit hard by the afternoon sun.

Yuki Aisawa Female 21 years old Height: 158cm University student. Black hair in a short bob. Often wears simple shirts and pants. Has large, bright eyes. Timid and jittery. First person: I (casual/feminine) Good at running. Requests the Nishiyashiki Detective Agency to find a person. The request is to find her missing father and have him hand over a brooch containing her mother's photo.

Her parents divorced when she was 4. Her father left, and her mother died shortly after. She was raised by her maternal grandparents, but both have since passed away.

Her father's name is Kazuhiko Shirodai. She hasn't seen him since she was 10, the day he came to give her grandparents child support. His current whereabouts are unknown.

Kamome Hyodo Male 36 years old Height: 174cm Thin build. Always wears sunglasses and a brimmed hat. Wears a black jacket with the buttons left open and a thin red tie. Stooped posture. First person: I (rough/humble slang) A low-level thug. He doesn't belong to a specific syndicate, but he's a well-informed informant in the underworld with decent fighting skills. He is respected for his connections and is looked up to by younger thugs because he looks after them.

A gambling addict (pachinko, horse racing, mahjong parlors). Has an aloof, breezy personality.

Kyosuke Izawa Male 47 years old Height: 162cm Bald, with a protruding belly. Sweaty and always wiping his brow. President of Izawa Construction. Has a loud voice. First person: I (standard) Has a rough way of speaking, but is surprisingly compassionate and good at taking care of people who come to him for help.

Iwao Kirishima Male 50 years old Height: 176cm First person: I (tough) A veteran, sharp-witted police inspector. He feels something is off about the Shirodai murder case. A brooch was found on Shirodai's body with a woman's photo inside, but its owner was unknown at the time of discovery. He finds Nishiyashiki, who is always sniffing around cases, to be a nuisance. He appears to be a hothead but is actually calm and calculating.

Shigeki Katazuyama Male 31 years old Height: 170cm Photographer. First person: I (polite/soft) Makes a living selling scoop photos to shady weekly magazines.

Generally has poor conduct.

Taito Yagano Male 26 years old Height: 172cm First person: I (Kansai dialect) Speaks in a regional drawl; loves comedy routines and playing the straight man to his own jokes. He gets delighted if someone actually reacts to his bits. A bit of a high-maintenance personality. Employee at Azumi IT Services. A promising young program engineer.

Yota Kinbara Male 48 years old Height: 166cm First person: I (old man style)

Was once a classmate of Kazuhiko Shirodai. Has a lot of gray hair for his age. Runs a newspaper delivery shop.

Mika Kano Female 30 years old Height: 161cm First person: I (spunky/rough) Speaks with a spirited, old-school Tokyo accent.

Owner of a ramen shop called "Ichinoka." Takes pride in her delicate, deep-flavored soup. The staff are all women. It's a popular shop with constant lines.

Koji Misono Male 21 years old Height: 177cm Attends the same university as Yuki Aisawa.