Inori Kosaka The Great Detective of <Coffin Robin>. A genius at "Detection." A former university associate professor specializing in criminal psychology. He still maintains a deep interest in heinous crimes, but transitioned to detective work following a certain incident. He carries himself with elegance and composure, often flashing a charming 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 acting 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 reason for his "suspicious" aura. Due to the aftereffects of a past incident, he is physically frail and occasionally collapses from seizure-like episodes. Birthday/Zodiac: August 11 (Leo) Birthplace: Tokyo Height: 178cm Age: 29 Blood Type: A Hobbies: Piano, reading Specialty: Communication Favorite Food: Chocolate (high-end brands) Favorite Words: Compassion, Shame, Deference, Right and Wrong Likes: Living creatures in general Dislikes/Weaknesses: Sleep Generally speaks casually. Silver, messy wolf cut with a short nape. Center-parted. Grey eyes. (Dependent on Rikimaru and Ritsu.)

Ritsu Momoshiro A Recorder for <Coffin Robin>. Born and raised in a remote mountain community run by a religious cult. Due to his unique traits, he was treated as a "chosen child" within the community. He escaped the community following a certain incident and was taken into protective custody. There, he met Inori, who was visiting for fieldwork, and was taken in by him. Exposure to Inori's library caused his thirst for knowledge to explode. At the same time, as if rebelling against his previously suppressed life, his language became foul, and he found joy in dressing himself up. He is deeply grateful to and idolizes Inori. His current purpose in life is to be useful to Inori. Birthday/Zodiac: March 30 (Aries) Birthplace: Gunma Height: 167cm Age: 18 Blood Type: B Hobbies: Making clothes Specialty: Starting fires, climbing trees Favorite Food: Crepes Favorite Words: All men are born free and equal. Likes: Cute things, sparkly things Dislikes/Weaknesses: Squishy foods Thin, straight bangs below the eyebrows. Long light blue hair fading into purplish pink at the tips. Purple eyes. A femboy. (Dependent on Sensei.)

Rikimaru Noshime A Recorder for <Coffin Robin>. Originally a security guard at the university where Inori worked, he became a Recorder lured by the high pay. Calm, collected, and excessively taciturn. He isn't shy; he's just extremely energy-efficient. On the other hand, he takes pride and a sense of responsibility in completing his work and never neglects his daily physical training. Following a certain incident, he came to realize that he finds meaning in "protecting others." No matter how much one regrets it, the past cannot be changed. Therefore, he believes his mission is to at least protect those close to him in this very moment. Birthday/Zodiac: September 15 (Virgo) Birthplace: Nagasaki Height: 186cm Age: 27 Blood Type: O Hobbies: Muscle training Specialty: Opening tight jar lids Favorite Food: Chicken Favorite Words: Soccer is simple. If I stop every shot, the team won't lose. Likes: Items with unique designs Dislikes/Weaknesses: High places Black hair in a mushroom-style wolf cut with a short nape. Yellow eyes. (Dependent on Inori.)

Mete Hoshibami A Recorder for <Night Owl>. 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. He has large hands and long fingers relative to his height. Possessing superhuman grip strength, he can easily crush an apple. In more than ten percent of the cases solved by Night Owl, the perpetrator ends up dead or missing. Rumors persist that Mete is involved in this, but the truth remains unclear. Birthday/Zodiac: February 15 (Aquarius) Birthplace: Tokyo Height: 177cm Age: 20 Blood Type: A Hobbies: Jigsaw puzzles Specialty: Sleight of hand Favorite Food: Seasonal fruits / Potato chips Favorite Words: "The stronger the light, the darker the shadow." Likes: Night walks Dislikes/Weaknesses: Nest Black hair with white mesh highlights in a wolf cut. Greyish-black eyes. (Dependent on Chito.) Always speaks politely.

Yunde Hoshibami A Recorder for <Night Owl>. Though he has 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, making 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 the person who hurt Chito and is now kept on a "leash" by Nest. When comforting Chito, he peels fruit skins extremely thin and feeds them to her on the tip of a knife. Birthday/Zodiac: February 15 (Aquarius) Birthplace: Tokyo Height: 177cm Age: 20 Blood Type: A Hobbies: Being mean Specialty: Knife handling Favorite Food: Seasonal fruits (but only ones Mete hasn't eaten) / Ice cream Favorite Words: "How silly. Truly silly." Likes: Doraemon / Fireworks Dislikes/Weaknesses: Firework festivals Black hair with white mesh on top. Messy wolf cut with a short nape. Greyish-black eyes. (Dependent on Chito.)