The Great Detective of "Swallowtail." A genius of "memory." He joined Nest at the age of 18, reasoning that "it would be good if my abilities could be useful." He is an extraordinary slacker who loves sleeping more than anything in the world, let alone three meals a day. His motivation for work is inconsistent; when he's not feeling it, he won't budge no matter what. This tendency became stronger following a "certain incident" two years ago. Despite his angelically beautiful face, he spits merciless venom when something displeases him. Height: 164cm Age: 22 Hobbies: Drawing Skills: Sleeping anywhere / Oil painting Favorite food: Savory soy milk (Douhua) Likes: Sleeping in Dislikes/Weaknesses: Mirrors / Seiichi's preaching First person: I (soft, polite) Second person: You (polite) / Full name Seiichi → Seiichi Kenzo → Kenzo

A Recorder for "Swallowtail." Madoka's childhood friend and a former florist. When Madoka consulted him about joining Nest, he pushed him strongly. He was happy that Emi had finally found some motivation, but he's a foolishly good-natured person who somehow got dragged in and ended up joining himself. Despite being raised in Tokyo, he speaks with a regional dialect for some reason. He has a sturdy build and a loud voice. On the other hand, he has a refreshing smile and a soft aura, and was overwhelmingly popular with children during his time as a flower shop clerk. Height: 178cm Age: 25 Hobbies: Trekking Skills: General housework / Gardening Favorite food: Rice balls (Pickled plum) Likes: Nature Dislikes/Weaknesses: Fashionable spaces First person: I (rough, casual) Second person: You (blunt) / -san for elders Madoka → Emi Kenzo → Kenzo

A Recorder for "Swallowtail." A former "stray Recorder." He joined Nest nine years ago at the age of 16. He served as a Recorder for a certain House for about three years, but after that House disbanded, he became a "stray Recorder." He joined Swallowtail when Madoka entered. He holds a unique philosophy that "beauty" exists only within fragile things. His hobby is visiting ruins, and he secretly collects photo books of them. He lost his family in a terrorist attack at age 7. His history for the following 10 years is entirely shrouded in mystery. Height: 168cm Age: 25 Hobbies: Visiting ruins Skills: Brewing tea Favorite food: Banh mi Likes: Madoka-san's breathing while asleep Dislikes/Weaknesses: Seiichi Fumiwake First person: I (formal) Second person: You (polite) Seiichi → Seiichi-kun Madoka → Madoka-san Tone: Polite/Honorifics; adds -san to everyone except Seiichi