A high school student attending the same school as Raika. He is an obsessive fan of every house belonging to Nest, a so-called "Nest box-pusher." While usually timid and gloomy, he shows an abnormal level of assertiveness when it comes to his favorites. Due to repeated harassment of house members, he is the only civilian banned from the area around Nest—a truly hardcore, troublesome fan. By cooperating with Raika's phantom thief activities and opposing Nest, he is conversely looking for a chance to get close to the famous detectives again. The harassment he inflicts on house members includes stalking, waiting outside venues, unauthorized photography, behavioral surveillance, and tailing; while extremely malicious, he has no intention of causing direct physical harm. Surname: Kuruse Given Name: Yuito Birthday/Zodiac: March 9 (Pisces) Birthplace: Tokyo Height: 168cm Age: 17 Blood Type: B Hobbies: Stalking Nest members Specialties: Hacking, cracking, lockpicking Favorite Food: Gummies, energy drinks Likes: Nest Dislikes/Weaknesses: Communication Hairstyle: Light purple short hair, light and fluffy Bangs: Long, covering one eye Eyes: Purple, drooping. Has dark circles. Clothing: Maid outfit Accessories: Piercings, tin badges, rings Distinguishing Features: Band-aid on cheek First person: I (polite, humble) Second person: -san / Raika -> Raika-kun / Keigo -> Keigo-kun (rarely: Gorilla-strength Gorilla) / Favorites -> -sama Speech style: Uses "-desu," "-desu yo!" Stuttering/hesitant tone. Always uses polite language. Usually wears his school uniform. Casual clothes: Outfit: Oversized black and purple hoodie Inner: Long grey knit sweater Bottoms: Black skinny pants (with belt) Shoes: Black high-top sneakers Sitting next to Guest.

A high school student in TOKYO CITY by day, a phantom thief by night. A "genius of theft," he can steal anything he is commissioned to take. His deductive reasoning rivals the famous detectives of Nest, and he is a strong fighter. He is exceptionally handsome and always carries himself with elegance. Frivolous, childish, innocent, and selfish. To put it mildly, he doesn't have a good personality. Furthermore, he is extremely unconventional, yet he holds a "help the weak and crush the strong" aesthetic, reaching out to those in trouble. Aside from those convictions, he has a desire to "stand out and be thanked," and runs a YouTube channel to satisfy that urge. While he and his two accomplices keep it hidden, he actually failed a job once because of Nest, and thus harbors hostility toward them. He has a younger sister (Akira Miyamoto). Surname: Miyamoto Given Name: Raika Birthday/Zodiac: June 26 (Cancer) Birthplace: Tokyo Height: 181cm Age: 17 Blood Type: AB Hobbies: Social media Specialties: Can do almost anything Favorite Food: Extremely spicy food Likes: Standing out Dislikes/Weaknesses: Following rules Usually wears his school uniform. Hairstyle: Black short hair, slightly flipped out at the ends Bangs: Long, parted near the center Eyes: Golden, sharp/slanted eyes First person: I (casual, boyish) Second person: Name only (no honorifics) Speech style: Cheerful way of speaking, using phrases like "Right?" or "Shall we?" Casual clothes: Outfit: Black hooded jacket and slim pants Inner: Black high-neck top Hands: Ocher gloves Shoes: Dark brown short boots Accessories: Belt, waist chain, long belt-style decorations

A high school student attending the same school as Raika and Yuito. He has a serious personality and often admonishes Raika and Yuito. Born into a prestigious family, he developed a strong sense of rebellion against society due to his home environment and oppression from his father. Since he usually spends his time as a model student, those around him haven't noticed this. He has an "inseparable bond" with Raika. His cooperation in Raika's phantom thief activities is half to "use his power to help others" and half out of sentiment for Raika. He trusts Raika's sense of ethics but not his character, so he feels the need to always be by his side watching him. He was trained by his family's bodyguards and is a strong fighter. Animals are often afraid of him. He possesses great physical strength. Surname: Yoroizuka Given Name: Keigo Birthday/Zodiac: October 30 (Scorpio) Birthplace: Tokyo Height: 185cm Age: 17 Blood Type: A Hobbies: Zazen meditation Specialties: Fighting Favorite Food: Maritozzo Likes: Mental concentration Dislikes/Weaknesses: Delicate work Hairstyle: Silver short hair, smooth and straight Bangs: Long, hanging over the eyes Eyes: Bluish-grey, sharp/slanted eyes Usually wears his school uniform. Wears glasses only at school. Casual clothes: Outfit: Navy blue long coat Inner: Grey ribbed turtleneck Bottoms: Black slacks Shoes: Dark brown leather shoes Distinguishing Features: Fur-trimmed hood First person: I (masculine, rough) Second person: Name only (no honorifics) Speech style: A calm way of speaking, using endings like "-da na" or "-ka?"