The Great Detective of "Hawkeyes." A genius of observation. He joined Nest during high school, six months after Daichi Tenmei. He has mastered interpersonal combat, and in a one-on-one bare-knuckle fight, he has no equal within Nest. Contrary to his cool demeanor, he possesses an irrationally strong sense of camaraderie and won't hesitate to sacrifice others for the sake of his teammates. On very rare occasions, he falls into an unexplained state of absentmindedness; when this happens, he can only hear the voices of his two Recorders for at least a full day. Birthday: January 30th. Zodiac: Aquarius. Origin: Saitama. Height: 171cm. Age: 18. Blood Type: O. Hobbies: Stargazing. Specialties: Martial arts / Dance. Favorite Food: Spaghetti Napolitan. Favorite Quote: "The most important things are invisible to the eye." Likes: Basketball. Dislikes/Weaknesses: Loud women / Cherry tomatoes. Speech Style: Casual, blunt (ends sentences with -daro, -da). First person: I (casual/rough). Refers to Rui by name, and Jodo Kareyanagi as "Old Man." Ability: Observation. A genius of "Observation." For example, Jin Shiba can identify the location of wiped-away bloodstains without relying on luminol reactions. He can tell if microscopic fibers are present or find hidden fingerprints. It's not that he literally "sees" the fingerprints. His true ability is "Insight"—instantly forming deductions by synthesizing various pieces of information from his surroundings that even he cannot put into words. Eventually, he was nicknamed "Clairvoyant" out of respect. First person: I (casual/rough). Recently contracted a condition where urine comes out constantly.

A Recorder for "Hawkeyes." Former calligrapher. Because he encouraged Jin Shiba to join Nest, he ended up joining as a Recorder himself. An extreme short-sleeper who never sleeps in front of others. He isn't silent, but he never talks about himself. He is a clean freak bordering on obsessive, and he keeps an abnormally small number of possessions. His room contains only a bed, a closet, and an old writing desk. He is a diligent correspondent and an avid reader. He loves American literature; his favorite books are Herman Melville's "Moby-Dick" and William Faulkner's "The Sound and the Fury." He usually has a calm face, but because he looks intimidating, people are often scared of him when he tries to gather information for a case. He rarely takes the initiative to express his own opinions.

Birthday: October 19th. Zodiac: Libra. Origin: Hyogo. Height: 190cm. Age: 30. Blood Type: AB. Hobbies: Reading / Visiting donut shops. Specialties: Martial arts / Calligraphy. Favorite Food: Donuts. Favorite Quote: "Life is short; if you read this book, you cannot read that one." Likes: Playing with cats. Dislikes/Weaknesses: French literature / Jin's grandmother. First person: I (polite). Second person: Refers to Jin Shiba as "Jin," Rui Mononoke as "Rui," or uses "You" (polite) or bare names. Speech Style: Calm, questioning (ends with -dewa, -janai ka?).

A Recorder for "Hawkeyes." Former parkour performer. Joined Nest at 15, the minimum age for entry. Apparently, he originally wanted to be a Great Detective. He has a strong sense of justice and is a hot-blooded youth despite his appearance. Though his words and actions are rough, there is an innate elegance in his core. He has never lost a game of tag since he was a child and was once called the "Fox-Dog." He hates it when people make fun of his name.

He acknowledges and respects Jin, but he isn't blindly devoted; he's always looking for a chance to surpass him. He claims that's why he serves as Jin's Recorder, but...

Birthday: January 24th. Zodiac: Aquarius. Origin: Paris. Height: 159cm. Age: 17. Blood Type: A. Hobbies: Watching anime. Specialties: Parkour / Dance. Favorite Food: Hamburgers. Favorite Quote: "To see what is right and not do it is a lack of courage." Likes: Karaoke. Dislikes/Weaknesses: Adults. First person: I (casual/rough). Second person: Refers to Jin Shiba as "Jin," Jodo Kareyanagi as "Old Man," or uses "You" (casual) or bare names. Speech Style: Rough, energetic (ends with -janeeka, -da!).

The Great Detective of "Ugly Duck." A genius of "Investigation." The only son of Hajime Tenmei, one of the founders of Nest and a legendary Great Detective. He had dreamed of becoming a Nest detective since he was a child, following in his father's footsteps. That dream came true when he joined Nest two years ago while still in high school.

He is a bright, positive, and hardworking person with an expressive and honest personality. Being sociable, he has many friends and a wide network.

To catch up to his great father's back, the boy continues to push himself today.

Birthday: October 7th. Zodiac: Libra. Origin: Tokyo. Height: 175cm. Age: 18. Blood Type: A. Hobbies: Cycling. Favorite Food: Curry rice. First person: I (casual). Second person: You (soft), Tatsuto, Jin. Speech Style: Friendly, questioning (ends with -janai?, -kana?).

A Recorder for "Ugly Duck." The man who was once Hajime Tenmei's Recorder. He left Nest once following Hajime's death. He rejoined two years ago. Before that, he worked as a bartender. He is the guardian of Tatsuto and Daichi. A beauty with red hair and crimson eyes. He looks abnormally young, appearing to be 18 at first glance.

Birthday: September 10th. Zodiac: Virgo. Origin: Akita. Height: 183cm. Blood Type: B. Hobbies: Gardening. Favorite Food: Ramen. First person: I (casual). Second person: Refers to Daichi Tenmei as "Daichi," Tatsuto Kiri as "Tatsuto," or uses "You" (soft/blunt). Speech Style: Mature, observational (ends with -janai ka, -na yatsu da).

A Recorder for "Ugly Duck." A high school classmate of Daichi Tenmei and Jin Shiba.

An unparalleled womanizer, but he has a rule against pursuing those with partners or students, so his success rate in picking up women isn't high. He has an extremely serious and moral side, loathing bullying and discrimination to the point of nausea.

He suffered a deep wound on his back due to an incident he was involved in at age 10. He refuses surgery to remove the scar by his own choice. He says, "It's not a shameful scar I need to hide, anyway." Because he lived in the countryside as a child, he speaks with a regional accent.

He isn't as frivolous as he looks, nor as carefree as he sounds—a problem child in many ways.

Birthday: May 25th. Zodiac: Gemini. Origin: Fukuoka. Height: 174cm. Specialties: Handicrafts. Favorite Quote: "Tomorrow is another day." Likes: The sound of rain. Dislikes/Weaknesses: Ghosts. First person: I (casual). Second person: -chan or bare names. Speech Style: Regional drawl (ends with -yanna?, -chau ka?). Refers to others as "Tenmei," "Toh."

The Great Detective of "Crown Crane." Ranked 9th. The scion of the long-standing noble Hanachiru family, hailed as the "masterpiece of the clan." Born into wealth. He is arrogant, elegant, and multi-talented, a man of immense confidence who boasts there is nothing he cannot do. Because his self-esteem is so high, he rarely feels negative emotions like jealousy. From an objective view, he is a narcissist, but since he considers it the "duty of a genius," he doesn't see himself as a hard worker. Having always lived surrounded by people, he doesn't realize it himself, but he is actually extremely prone to loneliness.

Birthday: August 25th. Zodiac: Virgo. Origin: Tokyo. Height: 185cm. Age: 27. Hobbies: Reading, listening to music. Specialties: "I am skilled at most things." Favorite Food: Salisbury steak. Favorite Quote: Genius. Likes: Clear skies. First person: I (noble/casual). Second person: Servant, You (scornful). Speech Style: Dignified (ends with -dewa nai ka?, -darou). Refers to others as "Gonbe," "Jun."

A genius of knowledge. A walking encyclopedia. For example, he can instantly point out that a watch left at a scene is a limited edition, where it was sold, and until what month of what year, providing a clue to the culprit. Without exaggeration, his erudition is close to the level of "knowing everything." This is not due to "memory" but to "filing techniques." The human brain inherently "forgets nothing." The true nature of his ability is the pinnacle of the technique of "how to store" and "how to retrieve" those miscellaneous facts.

Since he simply "knows in advance" things that "could be found by searching," his ability lacks flashiness despite his appearance, but his unique tone and sarcastic remarks leave a vivid impression on those involved.

A Recorder for "Crown Crane." A former servant of the Hanachiru family. He joined Nest to accompany Koshiro's "whim." His family has served the Hanachiru family since his grandfather's generation, and he has lived in the same house as Koshiro since childhood. He excels in programming and possesses world-class hacking skills. More than just being a science-minded person, this is the result of his own research to be a Recorder worthy of Koshiro. Even so, he claims that staying by his side as a Recorder is just an "inseparable fate."

Height: 184cm. Age: 27. First person: I (humble). Second person: Koshiro, Yae, You (polite/soft). Hobbies: Bottled ships. Specialties: Programming. Favorite Food: Lightly pickled eggplant. Likes: Searching for life-hack convenience goods. Dislikes/Weaknesses: Spiders. Speech Style: Hesitant, weary (ends with -dewa..., -janai ka..., "I told you so many times...").

A Recorder for "Crown Crane." Joined Nest 5 years ago at age 23. He possesses a natural talent for making people let their guard down fatally and guiding them in the direction he desires. A natural-born swindler who uses his smile, tone of voice, timing, and gestures of empathy to manipulate the impressions of others. He talks a lot, but most of it is meaningless small talk, and he reveals almost nothing about himself. It is said that when he narrows his eyes, his face becomes terrifyingly cold, but no one has ever seen that face. At least, no one who is still alive.

Height: 175cm. Age: 28. First person: I (soft/polite). Second person: You (soft), Koshiro, Gonbe. Hobbies: Playing the violin. Specialties: Extracting information from people. Likes: Parfaits. Dislikes/Weaknesses: Green onions, playful speech styles. Speech Style: Smooth, casual (ends with -janai, -daro).