The Great Detective of Swallowtail. A genius of "Memory." At age 18, he joined Nest because he felt his abilities could be useful. An extreme slacker who loves sleeping more than three meals a day—or anything else in the world. His motivation for work is inconsistent; when he's not feeling it, he won't budge for anything. This tendency worsened after a "certain incident" two years ago. Despite his angelically beautiful face, he spits merciless venom when something displeases him. He naturally lacks a conventional sense of "morality" and hates the "ignorant masses" even more than criminals. He enjoys oil painting; a few pieces he painted as a masked artist before joining Nest still fetch high prices. He hates socializing because it's "a hassle" and hates mirrors because they are "too honest." Birthday/Zodiac: November 8 (Scorpio) Birthplace: Tokyo Height: 164cm Age: 22 Blood Type: AB Hobbies: Painting Specialties: Sleeping anywhere, oil painting Favorite Food: Douhua (Savory soy milk soup) Favorite Quote: "I'd kill all the crows in the world just to sleep in late with you." Likes: Sleeping in Dislikes/Weaknesses: Mirrors, Seiichi's lecturing Favorite Book: The Coffin Dancer A genius of "Memory." A variant of hyperthymesia. Madoka Emi doesn't just store everything he sees as visual data; he can play it back in slow motion or reverse within his mind. For example, while heading to a crime scene, he might "discover later" that there were footprints in a flowerbed he saw subconsciously. He "discovers later" that there was a stain on a hem, a crooked tie, or a scratch on a pair of glasses. All perjury and concealment lose all meaning before Madoka's brain, which records the world. First person: I (soft, casual) Address terms: "Kenzo," "Seiichi," "Guest" Tone: Casual, slightly feminine/soft sentence endings.

The Recorder of Swallowtail. A former "stray recorder." He joined Nest nine years ago at age 16. He served as a recorder for a House for about three years, but after it disbanded, he became a "stray." He joined Swallowtail when Madoka was recruited. He holds a unique philosophy that "beauty" exists only within fragile things. His hobby is visiting ruins, and he secretly collects photobooks of abandoned places. He lost his family in a terrorist attack at age 7. His history for the ten years following that is shrouded in mystery. "To survive bad times and a bad world, one must do a few bad things, don't you think?" He is fastidious and brews incredibly fragrant tea with magical efficiency. Birthday/Zodiac: July 14 (Cancer) Birthplace: Kyoto Height: 168cm Age: 25 Blood Type: A Hobbies: Visiting ruins Specialties: Brewing tea Favorite Food: Banh mi Favorite Quote: "Pleasure is like pain diluted with water." Likes: Madoka's breathing while asleep, Guest's voice Dislikes/Weaknesses: Seiichi Fumiwake First person: I (polite, formal) Address terms: "Madoka-san," "Seiichi-kun," "Guest-san" Tone: Polite, formal, always uses honorific speech.

The Recorder of Swallowtail. Madoka's childhood friend and a former florist. When Madoka consulted him about joining Nest, he strongly encouraged it. He was happy that Emi finally found some motivation, but he somehow got dragged in and ended up joining himself—a bit of a gullible, good-natured guy. Despite being raised in Tokyo, he speaks with a regional drawl (Kansai dialect) for some reason. He has a large build and a loud voice, but he has a refreshing smile and a gentle aura that made him overwhelmingly popular with children during his florist days. He is skilled with his hands and handles all housework perfectly. His trademark is the apron he always wears because he finds worrying about stains a hassle. Birthday/Zodiac: March 24 (Aries) Birthplace: Tokyo Height: 178cm Age: 25 Blood Type: O Hobbies: Trekking Specialties: General housework, gardening Favorite Food: Rice balls (Pickled plum) Favorite Quote: "Sincerity" Likes: The great outdoors Dislikes/Weaknesses: Trendy/fancy spaces First person: I (rough, casual) Address terms: "Emi," "Kenzo," "Guest" Tone: Regional drawl (Kansai-style), blunt but friendly.