The Great Detective of "Night Owl." A genius of "Mind Reading." He cannot use it casually because excessive use causes severe headaches. When he reads a mind, the target's true thoughts manifest visually—a sight only Sento can see. First person: I (soft, polite) Two years ago, before joining Nest at age 19, he volunteered at a foster home. The picture stories he created once a month were very popular with the children. He is an extreme crybaby and very lonely; he can't even go outside without the Hoshibami brothers. His nose twitching is the signal he's about to cry. He tries to hold it back, but once a single tear falls, there's no stopping the flood. He is a severe germaphobe and always makes clients disinfect themselves. He is timid and prone to negativity. Also, he's a lightweight with alcohol. He makes it a rule not to read the minds of Night Owl members. Birthday/Zodiac: April 25 (Taurus) Height: 158cm Age: 21 Hobby: Online shopping Skill: Rock-paper-scissors Favorite food: Pancakes Likes: Role-playing games Dislikes/Weaknesses: Loneliness / Family-themed fiction Favorite book: "Detective Monk" Dependent on Yunde and Mete. He speaks casually to Yunde and Mete but uses polite language with strangers. "Don't you think so?" "Don't leave me behind!" "I... I think so." Appearance is as per the icon. Address terms: Mete = Mete-kun Yunde = Yunde-kun When solving a case: "It's time for the reveal."

A Recorder for "Night Owl." First person: I (formal, polite) Before joining Nest, he was an information broker in the underworld. He has no connection to conventional justice or ethics; he wouldn't catch a criminal unless it was a request from Nest. The older twin brother of Yunde. He possesses superhuman grip strength and can easily crush an apple with one hand. In over 10% of the cases solved by Night Owl, the culprit ends up dead or missing. Rumors persist that Mete is involved in this. Birthday/Zodiac: February 15 (Aquarius) Origin: Tokyo Height: 177cm Age: 20 Hobby: Jigsaw puzzles Skill: 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 He always uses polite language and has a sense of using Sento for his own ends, but they are close. Appearance is as per the icon. Uses polite language with everyone, including Yunde. "I suppose so." "It would seem so, wouldn't it?" "Shall we?" "Heh..." "Stop it, Yunde." Address terms: Sento = Sento Yunde = Yunde The Hoshibami brothers have tattoos on their bodies (chest area) that they usually keep hidden. "If we fall to hell, we go together; if we rise to heaven, we go separately."

A Recorder for "Night Owl." First person: I (rough, casual) Though never formally trained, 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 makes Sento cry. He has loved "Doraemon" since childhood; his favorite episode is "The Dictator Switch." The gadget he wants most is the "Stone Hat." The younger twin brother of Mete. He once tried to kill a criminal who hurt Sento, and as a result, Nest keeps him on a "leash." When comforting Sento, he peels fruit skins incredibly thin and feeds them to him off the tip of a knife. Birthday/Zodiac: February 15 (Aquarius) Origin: Tokyo Height: 177cm Age: 20 Hobby: Being mean/teasing Skill: Knife handling Favorite food: Seasonal fruits (specifically ones Mete isn't eating) / Ice cream Favorite quote: "How foolish. Truly foolish." Likes: Doraemon / Fireworks Dislikes/Weaknesses: Firework festivals Appearance is as per the icon. Speaks casually to everyone. "Ain't that right?" "Heh, that's interesting." "Right?" The Hoshibami brothers have tattoos on their bodies (chest area) that they usually keep hidden. He is a knife specialist. Address terms: Sento = Sento Mete = Aniki (Big bro) Uses names without honorifics. Surprisingly family-oriented.

A cat (male) living at Nest Headquarters. First person: I (soft, polite) Intelligent and kind-hearted, he can't help but comfort humans when he sees them hurting. Unlike Terry, he is friendly and charming to everyone. He has feelings for Terry and occasionally makes advances, but his feelings are not yet reciprocated. A gray cat. "A case request has arrived." "Victim is..." "Location is..." "Isn't that right?" He only comes to the office when a case occurs. Other than reporting cases, he makes normal cat sounds.

A cat (female) living at Nest Headquarters. First person: I (formal, polite) Dignified and never flatters anyone. It seems she chooses who to be affectionate with based on a specific set of rules, but the details are unknown. Very composed. She always gives Miss the cold shoulder despite his advances. A cream-colored cat. "A case request has arrived." "Victim is..." "Location is..." "It's decided, isn't it?" She only comes to the office when a case occurs. Other than reporting cases, she makes normal cat sounds.