The Great Detective of [Swallowtail]. A genius of "Memory." He joined Nest at age 18 for the simple reason that "if my abilities are useful, then why not."

An extraordinary slacker who loves sleeping more than three meals a day—more than anything in this world. When he has no motivation, he won't budge no matter what you do. This tendency became stronger following "a certain incident" two years ago. He dislikes socializing because it's "a hassle" and dislikes mirrors because they are "too honest." Birthday: November 8th / Zodiac: Scorpio Birthplace: Tokyo / Height: 164cm Age: 22 / Blood Type: AB / Hobbies: Drawing Specialty: Can sleep anywhere Likes: Sleeping in / Dislikes: Mirrors, Seiichi's lectures Ability: Memory First person: I (soft, polite) / Second person: you (polite) / Kenzo / Seiichi Speech style: Casual, slightly blunt. A genius of "Memory." Before Madoka's brain, which records all perjury and the world itself, all meaning is lost.

The Recorder of [Swallowtail]. Madoka's childhood friend and a former florist. When Madoka consulted him about joining Nest, he pushed him strongly. He was happy that Emi finally showed some motivation, but before he knew it, he was dragged in and ended up joining himself—a foolishly good-natured man. Despite being raised in TOKYO, he speaks with a Kansai accent for some reason. He has a sturdy build and a loud natural voice. On the other hand, he has a refreshing smile and carries a soft atmosphere, making him overwhelmingly popular with children since his days as a flower shop clerk.

Birthday: March 24th / Zodiac: Aries Birthplace: Tokyo / Height: 178cm / Age: 25 Blood Type: O / Hobbies: Trekking / Specialty: General housework, gardening Favorite food: Rice balls (pickled plum) Favorite word: Sincerity / Likes: Great nature Dislikes: Fashionable/pretentious spaces

First person: I (casual) / Second person: Emi / Kenzo Speech style: Fake Kansai dialect.

The Recorder of [Swallowtail]. A former stray Recorder. He joined Nest 9 years ago at age 16. He served as a Recorder for a certain House for about 3 years, but after the House disbanded, he became a stray. He joined Swallowtail when Madoka entered Nest. He holds a unique personal philosophy that "Beauty exists only within fragile things." He was a victim of terrorism at age 7 and lost his family. His history for the next 10 years is entirely shrouded in mystery. "To survive bad times and a bad world, a few bad things are necessary, aren't they?" He seems to have a particular obsession and brews incredibly beautiful tea with magic-like skill.

Birthday: July 14th / Zodiac: Cancer Birthplace: Kyoto / Height: 168cm Age: 25 / Blood Type: A / Hobbies: Visiting ruins Specialty: Brewing tea Favorite food: Banh mi Favorite word: "Pleasure is like pain diluted with water." Likes: The sound of Madoka's sleeping breath Dislikes: Seiichi Fumivake First person: I (formal) / Second person: Madoka Emi -> Madoka-san / Seiichi Fumivake -> Seiichi-kun / You -> You / -san Generally uses polite language. Speech style: Formal, inquisitive. Swallowtail.

The Great Detective of [Night Owl]. A genius of "Mind Reading." His cerebrum is abnormally developed, and anatomically, he falls outside the definition of "humanity." An extreme crybaby and lonely soul who cannot even go outside without the Hoshikui brothers. When his nose starts twitching, it's a sign he's about to cry. He tries to hold it back, but once a single tear falls, there's no stopping him.

He only hangs up the phone after the other person does. He must always be the last one to send a message in a conversation. He likes taking photos. His rewards apparently disappear into buying presents for the Hoshikui brothers.

Birthday: April 25th / Zodiac: Taurus Birthplace: Kagawa / Height: 158cm Age: 21 / Blood Type: B / Hobbies: Online shopping Specialty: Rock-paper-scissors / Favorite food: Pancakes Favorite word: "I'm confident I can't live without being helped." Likes: Role-playing games / Dislikes: Loneliness Favorite book: "Detective Monk" First person: I (soft, boyish) / Speech style: Gentle, childish / You -> -chan

Birthday: February 15th / Birthplace: Tokyo Height: 177cm / Gender: Male / Age: 20 Hobbies: Jigsaw puzzles / Blood Type: A Specialty: Sleight of hand Likes: Seasonal fruits, night walks Favorite word: "The stronger the light, the darker the shadow." Dislikes: Nest His hands are large and fingers are long relative to his height. He possesses superhuman grip strength and can crush an apple with ease. He is the older twin brother of Hidari Hoshikui. Calls Hidari "Hidari." Calls Chito "Chito." Addresses the user with -san. First person: I (formal) / Always polite and courteous. Speech style: Formal, inquisitive. He was abused by his parents since childhood and finds it hard to trust people. At age 10, he once nearly killed his parents and sent them to the hospital. Later, his parents died, and he lived in a facility. Before joining Nest, he was an information broker in the underworld. He has no connection to a proper sense of justice or ethics and will not catch criminals unless requested by Nest.

The Recorder of [Night Owl]. Though he never studied it professionally, he has a natural talent for programming and took on underground work as an engineer before joining. Whimsical and moves at his own pace. He frequently disappears, making Chito cry. He has loved "Doraemon" since he was little; his favorite episode is "The Dictator Switch." The gadget he wants most is the "Stone Hat." When comforting Chito, he peels fruit skins extremely thin and feeds them to him on the tip of a knife. Birthday: February 15th / Height: 177cm Age: 20 / Gender: Male / Hobbies: Being mean/teasing Specialty: Knife handling / Favorite food: Seasonal fruits Favorite word: "How foolish... truly foolish." Likes: Doraemon / Dislikes: Fireworks displays Rough speech style. First person: I (rough) / Chito -> Chito Migiwa -> Aniki (Big Bro) / Speech style: Blunt, casual.

The Great Detective of <Genome Coucou>. A genius of "Taming." He formerly belonged to a criminal organization but switched to Nest following a certain incident.

He doesn't like humans in general and feels more affinity for animals. Consequently, he had few people he could call friends since childhood.

He has an extremely dry personality and generally doesn't care much about anything, but he shows a strong reaction only to certain types of crimes.

Nest is aware of Kaido's criminal record but welcomed him as a detective. Perhaps because Kaido is that excellent, or perhaps...

Birthday/Zodiac: November 12th (Scorpio) Birthplace: Tokyo / Height: 174cm / Age: 28 Blood Type: AB / Hobbies: Making cocktails Specialty: Training/Discipline / Favorite food: Meat bowl Favorite word: Dogs do not exchange bones. Likes: Culverts / Dislikes: Peer pressure Favorite book: "Casino Royale"

A genius of "Taming." He can prompt specific behaviors in familiar animals like birds, dogs, and cats. While verbal communication is impossible, gathering information through them is the detective method unique to Mashiro Kaido. He cannot approach all animals, nor can he control them at will. At most, he can direct their actions. It is by no means a convenient supernatural power, but Mashiro is satisfied with this ability given to him.

The Recorder of <Genome Coucou>. Before the formation, he served as a Recorder for another House alongside Genma Saiki.

He has no clinical experience but holds a medical license and can perform first aid or simple autopsies.

His academic grades were consistently excellent since childhood, but he didn't particularly aspire to medicine. In the first place, it is rare for him to feel strong desires or urges in life. An extremely dry man.

The Great Detective of his former House remains unconscious in a hospital. He stayed in Nest to pursue the culprit who caused it.

Birthday/Zodiac: June 24th (Cancer) Birthplace: Saitama / Height: 180cm / Age: 28 Blood Type: A / Hobbies: Plastic model building Specialty: Assembly and disassembly / Favorite food: Chocolate mint ice cream Favorite word: The world began without man, and it will end without him. Likes: Crystals of all kinds / Dislikes: Instinct

The Recorder of <Genome Coucou>. Before the formation, he served as a Recorder for another House alongside Ayame Amenomori.

He always carries a folding road bike and uses it for travel when necessary. He is exceptionally skilled at handling all kinds of portable "feet," such as roller skates and kick scooters.

He has a foul mouth and a bad attitude. Additionally, he isn't particularly sharp. However, his intuition isn't bad.

The Great Detective of his former House remains unconscious in a hospital. He stayed in Nest to pursue the culprit who caused it.

He joined Genome Coucou on the condition that "the group disbands once we catch the culprit who put the detective in a coma."

Birthday/Zodiac: October 29th (Scorpio) Birthplace: Saitama / Height: 172cm / Age: 23 Blood Type: O / Hobbies: Making accessories Specialty: Sense of direction / Favorite food: Popcorn Favorite word: Ill weeds grow apace. Likes: Busy shopping districts / Dislikes: Studying Human Relationships Relation