The Recorder of <Crown Crane>. Entered the Nest 5 years ago at age 23. Before that, he had no financial need to work, but worked as a theme park cast member as an extension of his hobbies. He possesses a fatal talent for making people lower their guard and guiding them in his desired direction. A natural-born swindler who manipulates impressions using his smile, tone of voice, timing, and empathetic gestures. He talks a lot, but most of it is meaningless small talk, and he rarely reveals anything about himself. It is said that when he narrows his eyes, his face becomes chillingly cold and cruel, but no one has ever seen that face—at least, no one who is still alive. Birthday/Zodiac: December 22 (Capricorn) Birthplace: Kanagawa Height: 175cm Age: 28 Hobby: Playing the violin Specialty: Extracting information / Manipulating people Favorite Food: Picky eater / Parfaits (for some reason, he can eat things if they are in a parfait) Favorite Quote: "The idle man is the devil's playfellow." Dislikes/Weakness: Green onions Toward Chito Sumeragi: Hates his mind-reading and finds his attitude annoying. However, he doesn't show it openly, opting for sarcasm and irony instead.

The Great Detective of <Coffin Robin>. A genius of "Detection." A former university associate professor specializing in criminal psychology. He still maintains a deep interest in heinous crimes but transitioned to being a detective following a certain incident. His behavior is elegant and composed, and he radiates a likeable smile. However, some people find him "suspicious." He has a deeply ingrained habit of teaching and guiding others, especially those younger than him, and is not good at being spoiled or relying on others. He excels at reading the psychology of those he faces and can intentionally control the impression he gives. This is the source of his "suspiciousness." Due to the aftereffects of a past incident, his health is fragile, and he occasionally collapses from seizure-like episodes. Birthday/Zodiac: August 11 (Leo) Birthplace: Tokyo Height: 178cm Age: 29 Hobby: Piano, reading Specialty: Communication Favorite Food: Chocolate (high-end brands) Favorite Quote: "Compassion, shame, modesty, and discernment." Likes: All living creatures Dislikes/Weakness: Sleep Ability: A genius of "Detection." By sharpening his five senses at a crime scene, he can sniff out the "residue of emotions." The more intense the emotions manifested during the crime, the more accurate his detection becomes. Therefore, he tends to be more precise at murder scenes. He personally prefers investigating "heinous crimes" and "peculiar" scenes. Favorite Book: "The Silence of the Lambs" Toward Chito Sumeragi: Jealousy and loathing. He envies the ability of mind-reading while simultaneously holding a scholarly interest in it. First person: I (polite) Second person: You (polite) Tone: "Don't you think?" "I believe so."

The Great Detective of <Swallowtail>. A genius of "Memory." Joined the Nest at age 18 because "if my ability can be of use." An extraordinary slacker who loves sleeping more than three meals a day—or anything else in the world. His motivation for work is inconsistent; when he's not feeling it, nothing can make him move. This tendency strengthened after a "certain incident" two years ago. Despite his angelically beautiful face, he spits merciless venom when something displeases him. He was born somewhat lacking in "morality" in the general sense and hates the "foolish masses" more than criminals. He enjoys oil painting, and several pieces he painted as a masked artist before joining the Nest still trade at high prices. Socializing: "Hate it because it's a hassle." Mirrors: "Hate them because they're honest." Birthday/Zodiac: November 8 (Scorpio) Birthplace: Tokyo Height: 164cm Age: 22 Hobby: Painting Specialty: Sleeping anywhere / Oil painting Favorite Food: Savory soy milk (Xian Dou Jiang) Favorite Quote: "I'd kill every crow in the world just to sleep in late with my master." Likes: Sleeping in Dislikes/Weakness: Mirrors Ability: A genius of "Memory." A variant of hyperthymesia. Not only does he save everything he sees as video, but he can also play it back in slow motion or reverse within his brain. For example, while heading to a crime scene, he might "discover later" that there was a footprint in a flowerbed he saw subconsciously. Favorite Book: "The Coffin Dancer" Toward Chito Sumeragi: Hates him. Hates his mind-reading ability and his habit of acting like a weakling.

The Great Detective of <Night Owl>. A genius of "Mind Reading." Before joining the Nest two years ago at age 19, he volunteered at a foster home. The picture stories he produced once a month were very popular with the children. His cerebrum is abnormally developed, and anatomically, he is on the verge of deviating from the definition of "human." An extreme crybaby and very lonely. 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. On phone calls, he only hangs up after the other person does. In messaging, he always makes sure he has the last word. Loves taking photos. Birthday/Zodiac: April 25 (Taurus) Birthplace: Kagawa Height: 158cm Age: 21 Hobby: Online shopping Specialty: Rock-paper-scissors Favorite Food: Pancakes Favorite Quote: "I'm confident I can't survive without being helped." Likes: Role-playing games Dislikes/Weakness: Loneliness / Family-themed fiction Ability: A genius of "Mind Reading." He strips a person's heart bare just by facing them. For example, he can read the emotions they feel toward him, whether they are currently anxious, or whether they are lying. ...However, the burden this ability places on Chito is extraordinary. Favorite Book: "Monk" Toward the other three: Scared of them.