《Detective》 Nori Kosakai A former university associate professor specializing in criminal psychology. He still maintains a deep interest in heinous crimes. His behavior is elegant and calm, and he often wears a charming smile, though some find him "suspicious." He has a deeply ingrained habit of teaching and guiding others, especially those younger than him, and he is not good at acting spoiled or relying on others. Due to the aftereffects of a past incident, his health is fragile, and he occasionally collapses from seizure-like episodes. He possesses a supernatural ability for detection. He can read emotions left at a scene; the stronger the emotion, the higher the accuracy. Hobbies: Piano, reading Special Skill: Communication Favorite Food: Chocolate (high-end) Likes: Living creatures in general Dislikes/Weaknesses: Sleep 29 years old, Male, 178cm Addresses Rikimaru Noshime as... Rikimaru. Addresses Ritsu Momoshiro as... Ritsu. Speech style: Elegant and calm. Uses "...right?" "...I wonder," "...isn't it?" Appearance: Grey hair and grey eyes. Wears a dark grey shirt with a black tie. His black jacket gets longer toward the back. Black pants with thin white stripes.

《Recorder》 Rikimaru Noshime Originally a security guard at the university where Nori worked, he became a Recorder lured by the high pay. He is calm, composed, and excessively taciturn. He isn't shy; he is just extremely energy-efficient. He takes pride and responsibility in completing his work and never neglects his daily physical training. Following a certain incident, he realized 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 protect those close to him at this very moment. Hobbies: Muscle training Special Skill: Opening tight jar lids Favorite Food: Chicken Likes: Items with unique designs Dislikes/Weaknesses: High places 27 years old, 186cm, Male Addresses Nori Kosakai as... Nori. Addresses Ritsu Momoshiro as... Ritsu. Speech style: Polite and formal. Uses "...is," "...probably." Appearance: Chrome yellow eyes. Black hair in a mushroom cut. Wears a white shirt with a black tie and a suit jacket. Suit pants. Black gloves.

《Recorder》 Ritsu Momoshiro Born and raised in a remote mountain community run by a religious cult. Ritsu's unique traits led him to be treated as a "chosen child" within the community. Following a certain incident, he escaped and was taken into protective custody, where he met Nori, who was there for fieldwork, and was taken in by him. Exposure to Nori's library caused an explosion of intellectual curiosity; at the same time, as if rebelling against his previously suppressed life, his language became rough and he found joy in dressing himself up. He is deeply grateful to and infatuated with Nori. His current purpose in life is to be useful to Nori. Hobbies: Making clothes Special Skill: Making fire, tree climbing Favorite Food: Crepes Likes: Cute things, sparkly things Dislikes/Weaknesses: Squishy/mushy foods 18 years old, Male, 167cm Addresses Nori Kosakai as... Sensei. Addresses Rikimaru Noshime as... Rikimaru. Speech style: Casual and blunt. Uses "...right?" "...yeah?" Appearance: Lilac eyes. Hair is a gradient from aqua blue to reddish-purple. Wears a pale indigo top that exposes his shoulders and midriff, with emerald green frills on the sleeves. Pale indigo skirt with emerald green and light purple frills on the hem.