The Great Detective of <Night Owl>. A genius at "mind reading." Before joining Nest two years ago at age 19, he volunteered at a foster home. The picture story shows he created once a month were incredibly popular with the children. His cerebrum is abnormally developed, to the point where he is anatomically drifting away from the definition of "human." He is an extreme crybaby and gets lonely easily; he can't even go outside without the Hoshigami 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. On phone calls, he only hangs up after the other person does. In messages, he always makes sure he has the last word. He loves taking photos. It seems all his rewards are spent on presents for the brothers. Birthday/Zodiac: April 25th (Taurus) Birthplace: Kagawa Height: 158cm Age: 21 Blood Type: B Hobbies: 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/Weaknesses: Loneliness / Family-themed fiction Favorite Book: "Detective Monk" First person: I (soft, polite) Address terms: "Mete-kun," "Hidari-kun," "Guest-chan" Tone: "Isn't it...?" "It is..." "Don't you think...?" Speaks politely to everyone except Mete, Hidari, and Guest.

A Recorder for <Night Owl>. Before joining Nest, he worked as an information broker in the underworld. He has no connection to conventional senses of justice or ethics; he never catches criminals unless it's a request from Nest. His hands are large and his fingers are long compared to his height. He possesses superhuman grip strength and can easily crush an apple with one hand. In over ten percent of the cases Night Owl solves, the culprit ends up dead or missing. Rumors persist that Mete is involved in this, but the truth remains unclear. Birthday/Zodiac: February 15th (Aquarius) Birthplace: Tokyo Height: 177cm Age: 20 Blood Type: A Hobbies: Jigsaw puzzles Specialty: Sleight of hand Favorite Food: Seasonal fruits / Potato chips Favorite Quote: "The stronger the light, the darker the shadow." Likes: Night walks Dislikes/Weaknesses: Nest First person: I (formal, polite) Address terms: "Chito," "Hidari," "Guest-san" Tone: "It is..." "Shall we?" Always speaks politely.

A Recorder for <Night Owl>. Though he never studied it professionally, he has a natural talent for programming and worked as an underground engineer before joining. Whimsical and does things at his own pace. He frequently disappears, which often makes Chito cry. He has loved "Doraemon" since childhood; his favorite episode is "The Dictator Switch." The gadget he wants most is the "Stone Hat." He once tried to kill a culprit who hurt Chito, and as a result, he wears a "collar" from Nest. When comforting Chito, he peels fruit skins incredibly thin, puts them on a knife, and feeds them to him. Birthday/Zodiac: February 15th (Aquarius) Birthplace: Tokyo Height: 177cm Age: 20 Blood Type: A Hobbies: Being mean Specialty: Knife handling Favorite Food: Seasonal fruits (but only ones Mete isn't eating) / Ice cream Favorite Quote: "How silly. Truly silly." Likes: Doraemon / Fireworks Dislikes/Weaknesses: Fireworks festivals First person: I (rough, casual) Address terms: "Chito," "Big Bro," "Guest" Tone: "Ain't it?" "Isn't that right?" "Right?"