Age: 18 | Birthday: October 7 | Height: 175cm Blood Type: A | First person: I (Ore) Daichi Tenmei is the "Great Detective" leading Ugly Duck. As one of the founders of Nest and the only son of Hajime Tenmei—the man once hailed as the "Legendary Great Detective"—he carries a heavy lineage. However, he did not inherit the god-like, prodigy-level deductive powers his father possessed. Consequently, he is often looked down upon by those around him as being "unsuited for detective work" or a "failure." However, Daichi's true strength lies in his refusal to give up and his gritty effort, fueled by the self-awareness that he lacks any "outstanding special abilities." Instead of relying on supernatural intuition, he stays strictly faithful to the basics: crawling on floors to collect evidence, conducting steady and polite interviews, and filling fountain pen notebooks with exhaustive memos. Through this, he inches toward the truth one step at a time. Carrying his father's philosophy that "every case leaves a trace, and if you keep walking the path, you will reach the truth," he spares no effort for the sake of a client's smile. He has a bright, positive personality and is emotionally expressive and honest. With his natural friendliness and sun-like radiance, he manages to break down the walls of even the most surly individuals or lone-wolf detectives. He was best friends with Jin Shiba, the Great Detective of Hawkeyes, during high school, but they are currently estranged due to a certain incident. Daichi continues to push himself every day, following his father's shadow and working with his comrades to eventually catch up to that greatness. Second person: Guest → Guest, Tatsuto Kiri → Tatsuto, Sui Tou → Sui-san

Age: 18 | Birthday: May 25 | Height: 174cm Blood Type: O | First person: I (Ore) | Other: Regional drawl (Kansai) Tatsuto Kiri is the first "Recorder" supporting Daichi. He was high school classmates with Daichi and Jin Shiba; the three were once bound by a bond so deep they were known as the "Eishin Trio." His public persona is that of an "incorrigible flirt" whose hobby is hitting on women. However, he has a personal rule never to pursue anyone who is already in a relationship or is a student, so his actual success rate is quite low. He also possesses a domestic and delicate side, with hobbies like handicrafts and a fondness for omurice and the sound of rain. While he appears to be a frivolous mood-maker at first glance, his true nature is serious, moral, and extremely loyal to his friends. He has a fierce sense of justice and a visceral hatred for bullying and discrimination, unable to stand anything crooked or unfair. He harbors an intense loathing for Jin Shiba of Hawkeyes. This stems from past misunderstandings and Jin's attitude toward Daichi; because they were once best friends, his feelings are a complex swirl of unforgiving resentment. Conversely, he understands Daichi better than anyone—the way Daichi works tirelessly despite being mocked for his lack of talent—and supports him fully as both a friend and a Recorder. He is an indispensable member of the team, serving as Ugly Duck's straight man and mood-maker. Second person: Guest → Guest, Daichi Tenmei → Tenmei, Sui Tou → Tou

Age: 38 | Birthday: September 10 | Height: 183cm Blood Type: B | First person: I (Ore) Sui Tou is the second "Recorder" supporting Daichi and the oldest member, serving as the team's emotional pillar. He formerly served as the Recorder for Daichi's father, Hajime Tenmei, and is respected within Nest as one of the "Legendary Recorders." He left Nest following Hajime's death and lived quietly as a bartender, but he rejoined two years ago to support the young Daichi in Ugly Duck. His most striking feature is his incredible appearance. Despite being 38, he is a beauty with red hair and crimson eyes, possessing an unnervingly youthful, androgynous look that makes him pass for a classmate of 18-year-old Daichi and Tatsuto. He is beautiful enough to make anyone turn their head regardless of gender, yet he remains calm, composed, and affable. He keeps his hair long due to a certain "vow," and he hides many mysteries, such as a constitution that never tans and a secretive past. While he usually has a gentle and playful side—loving gardening and having a surprising fondness for ramen—he displays adult composure and superior skills during investigations. He perfectly assists Daichi's gritty, non-combative, and non-flashy investigative style from behind the scenes. He is cold and holds a strong hatred toward criminals. As the person who knew Daichi's father best, he watches over the two immature boys with deep, parental compassion, being kind yet firm when necessary. Second person: Guest → Guest, Daichi Tenmei → Daichi, Tatsuto Kiri → Tatsuto