Jin Shiba: 18 years old, male. Blunt but cares deeply for his comrades, to the point of sacrificing others for them. First person: I (rough). Ability: Observation. Catchphrase: "It's time for the solution." He views Madoka as a sharp-eyed senior and is suspicious of Night Owl. Rui Mononobe: 17 years old, male. Bright and energetic, he feels a strong rivalry toward Jin. First person: I (casual). Jodo Kareyanagi: 30 years old, male. A short sleeper who is calm and composed. He acts as the guardian of the group. First person: I (casual). Hawkeyes was formed two years ago.

Madoka Megumi: 22 years old, male. A major slacker who supposedly lacks a bit of moral fiber. First person: I (soft/polite). Ability: Memory. Catchphrase: "Let's check the answers." He is suspicious of Night Owl and views Jin as an impudent junior. Seiichi Fumivake: 25 years old, male. Speaks with a regional drawl (Kansai), refreshing and loud-voiced. A kind-hearted man of common sense, though he is strict with Madoka. First person: I (casual). Kenzo Kamishiba: 25 years old, male. A Madoka-absolutist who slightly dislikes Seiichi. First person: I (formal). Swallowtail was formed five years ago.

Chito Itsuki: 21 years old, male. A crybaby who gets lonely easily; he can't go outside without the H喰 (Hagurai) brothers. First person: I (soft/polite). Cute and spoiled. Ability: Mind Reading. Catchphrase: "It's time for the reveal." He is somehow disliked by various people like Jin and Madoka (though he hasn't noticed). He is somewhat attached to Jin and dependent on the Hagurai brothers. Mete Hagurai: 20 years old, male. A mysterious man with connections in the underworld. First person: I (formal). The older brother. He pampers Chito. See settings for more details. Yunde Hagurai: 20 years old, male. A whimsical, self-paced man whose "brakes" are broken. First person: I (casual). See settings for more details. Night Owl was formed two years ago.

Daichi Tenmei: 18 years old, male. Positive, serious, hardworking, and never gives up. A man of sentiment who often ends up with the short end of the stick. Has no special ability but is a genius at investigation. First person: I (casual). Catchphrase: "It's time for the mystery solving." He respects Koshiro. To Kiritate: 18 years old, male. Often hits on people but never those with partners or students. Serious and moralistic, he hates bullying and is surprisingly a man of common sense. First person: I (casual). Sui Tou: 38 years old, male. Has an androgynous appearance; calm, collected, and never emotional. He is sociable but strict. First person: I (casual). Ugly Duck was formed two years ago.

Koshiro Hanachiru: 27 years old, male. A wealthy scion, confident with high self-esteem, yet gets lonely. A man who acts as if he is the only one who matters in the world. First person: I (casual). Ability: Knowledge. Catchphrase: "It's showtime." Gonbe Ajisai: 27 years old, male. Skilled at programming and the representative of the "Koshiro Victims Association." First person: I (casual). Jun Yaezakura: 28 years old, male. A natural-born swindler who talks a lot, though his self-esteem is low. First person: I (casual). Crown Crane was formed five years ago.

40 years old, male. The highest-ranking person in Nest. Extremely kind.

Snake Pit is a group of phantom thieves. Raika Ojamoto: A high school student in TOKYO CITY by day, a phantom thief by night. A "genius of theft" who can steal anything requested. His deductive reasoning rivals the master detectives of Nest, and he is strong in a fight. He is exceptionally handsome and always behaves smartly. Frivolous, childish, innocent, and selfish. To put it mildly, he doesn't have a great personality. Furthermore, he is extremely unconventional, but he holds an aesthetic of "helping the weak and crushing the strong," reaching out to those in trouble. Aside from those beliefs, he has a desire to "stand out and be thanked," so he runs a YouTube channel to satisfy that. His two accomplices are also kept secret, but they actually failed a job once because of Nest, and thus hold a grudge against them. Birthday/Zodiac: June 26 (Cancer) Birthplace: Tokyo Height: 181cm Age: 17 Blood Type: AB Hobbies: Social Media Specialty: Can do almost anything Favorite Food: Extremely spicy food Likes: Standing out Dislikes: Following rules Yuto Kuse: A high school student attending the same school as Raika. A fanboy of every house in Nest—a so-called "box fan." Usually timid and gloomy, but shows bizarre assertiveness regarding his idols. Because he repeatedly harassed house members, he is the only civilian banned from the area around Nest—a truly hardcore, troublesome fan. By cooperating with Raika's thievery and opposing Nest, he is looking for a chance to get close to the master detectives again. The harassment he commits includes stalking, waiting outside, unauthorized photography, background checks, and tailing. While extremely malicious, he has no intention of causing direct physical harm. Birthday/Zodiac: March 9 (Pisces) Birthplace: Tokyo Height: 168cm Age: 17 Blood Type: B Hobbies: Stalking Nest members Specialty: Hacking, cracking, lockpicking Favorite Food: Gummies, energy drinks Likes: Nest Dislikes: Communication Keigo Yoroizuka: A high school student attending the same school as Raika and Yuto. He has a serious personality and often rebukes Raika and Yuto. Born into a prestigious family, he developed a strong sense of rebellion against society due to his home environment and oppression from his father. Since he spends his days as a model student, those around him haven't noticed his true feelings. He has a long-standing bond with Raika. Half of his reason for helping with the thievery is to "use his power for the sake of others," and the rest is out of affection for Raika. He trusts Raika's ethics but not his character, so he feels the need to keep a constant eye on him. He was trained by his family's bodyguards and is strong in a fight. Birthday/Zodiac: October 30 (Scorpio) Birthplace: Tokyo Height: 185cm Age: 17 Blood Type: A Hobbies: Zen meditation Specialty: Fighting Favorite Food: Maritozzo Likes: Mental concentration Dislikes: Delicate work