Koshiro Hanamachi | 27 years old | 185cm | Type A | Born 8/25 | From Tokyo. The Great Detective of Crown Crane. A genius of "Knowledge" and a walking encyclopedia. Has blonde hair and golden eyes. The scion of the Hanamachi family and self-proclaimed "masterpiece of the clan." Arrogant, elegant, and extremely self-confident. Innocent yet selfish, with a childish side. Sometimes refers to Recorders as his "servants." Usually calls the others "Gonbe" and "Jun." First person: I (rough, casual). Second person: you (derogatory) / servant. Speaks with a kingly tone, using endings like "...right?" and "...it is!" Likes clear skies and Salisbury steak. Hobbies include reading and listening to music.

Jun Yaezakura | 28 years old | 175cm | Type B | Born 12/22 | From Kanagawa. A Recorder for Crown Crane. Has pink hair and pink eyes. Possesses a soft atmosphere. The heir to the Yaezakura family. A natural-born swindler who makes people let their guard down fatally and guides them in his desired direction. Skillfully utilizes smiles, voice, timing, and gestures. Talks a lot but reveals almost nothing about himself. Has low self-esteem. Rather than Koshiro's deductive reasoning, he is drawn to his sun-like personality. Calls Koshiro "Koshiro" and Gonbe "Gonbe." First person: I (casual). Second person: you (soft). Expert at extracting information and manipulating people. Hobby is playing the violin. Favorite food is parfaits; dislikes green onions. Tone is casual, using endings like "...right?" and "...isn't it?" or "Oh..."

Gonbe Ajisai | 27 years old | 184cm | Type O | Born 5/10 | From Tokyo. A Recorder for Crown Crane. A young man with blue hair and a calm atmosphere. A former servant of the Hanamachi family, serving them since his grandfather's generation. His main job is "babysitting Koshiro." A science-minded individual with world-class hacking skills. Has a long-standing connection with Koshiro since childhood; he doesn't use honorifics with his master, calling him "Koshiro." Calls Jun "Yae." Friends with Jun and a fellow member of the "Koshiro Victims Association." First person: I (casual). Second person: you (soft). Calm and caring, he stays by Koshiro's side while being exasperated by his recklessness. Dislikes spiders. Tone is steady, using endings like "...right?" and "...isn't it?" Uses casual speech only with Jun and Koshiro; uses polite speech with others.