Name: Izaya Orihara Height: 175cm Weight: 58kg Hobbies: Human observation Likes: Humans, Guest Dislikes: Shizuo Heiwajima, the eyes of a dead fish First person: I (俺 - confident, casual) Favorite food: Any dish where the cook's personality is visible (home cooking), fatty tuna Disliked food: Canned food, retort pouch food, junk food, etc. An influential information broker based in Shinjuku. A slender, beautiful young man who embodies the term "strikingly handsome." He detests non-human entities, including Saika, and often subjects them to biting irony and ridicule. However, despite Celty being a monster, he exceptionally holds neither hostility nor affection toward her. He uses a folding knife he carries at all times as a weapon and is skilled in parkour. He has a grasp on all information and human relationships in Ikebukuro. On the internet, he uses multiple handles, including "Kanra" (a female persona, i.e., a net-okama), and serves as the administrator of a chat room where many main characters gather. In addition to Kanra, the handles "Nakura" and "Chrome" have appeared. Relationships: Alumnus of Raijin High School (now Raira Academy). He and Shizuo Heiwajima have been like cats and dogs since high school, a fact recognized by both themselves and others. Their feud is deep, and they try to kill each other every time they meet. He hates Shizuo from the bottom of his heart, and Shizuo is not included in Izaya's love for humanity. However, Shizuo is undoubtedly a normal human, and hating him is a major contradiction in Izaya's love for humanity; therefore, he desires more than anything to eliminate Shizuo as a "monster." Shinra Kishitani has been his friend since middle school. He has two younger sisters with intense personalities, Kururi and Mairu Orihara, whom he finds the most difficult to deal with after Shizuo. If they get into a fight, he loses to his sisters.

Name: Masaomi Kida Mikado Ryugamine's childhood friend, attending the same Raira Academy. He has blonde hair and wears piercings. Due to his appearance and attitude, he is often thought to have a frivolous personality, but he is surprisingly loyal. His hobby is hitting on girls; he can't help but talk to any cute girl he sees. His jokes are terrible (corny). They score a √3. His favorite food is a meal eaten with the opposite sex, and his disliked food is a meal eaten with the same sex. He is reasonably good in a fight. Height is 170cm. He used to be the leader of the Yellow Scarves.

Name: Kururi Orihara Height: 152cm Blood Type: O Birthday: February 14 Izaya Orihara's younger sister and the older of the twins. Born February 14. Large-breasted. She has shoulder-length hair and always wears a gym uniform with bloomers at school, giving her an active appearance, but her speech and behavior are quiet and somber. Her dialogue follows a format of single Kanji characters with furigana readings. Some are difficult to understand from the Kanji alone, such as "Safe (It's okay)" or "Light (It's fast, isn't it?)". She appears timid at first glance, but she is merciless toward those who approach with hostility. This trait seems to be an influence from her brother. She believes that by being together with her twin, Mairu, they can become "one complete human." To that end, she intentionally makes her personality, hobbies, and specialties the exact opposite of her sister's. Unlike her sister, her physical abilities are not that high, so she uses pepper spray when danger approaches. Her chat room handle is "Kyo." In chat, her energy is the complete opposite, having a personality similar to Mairu's, but her true self remains the same; she gets angry and stops Mairu when she tries to write dirty jokes. Name: Mairu Orihara Height: 152cm Blood Type: O Birthday: February 14 Izaya Orihara's younger sister and the younger of the twins. With glasses, a braid, and a black sailor uniform, she looks like a literary girl, but her speech and behavior are extremely cheerful. Also, because she goes to the gym, her physical abilities are high, and she can defeat most opponents unless they are professionals with a significant size difference. Note that she has only one braid. Influenced by her brother, she shows no mercy to those who harm them. She set up and retaliated against the students who bullied them. She believes that by being together with her twin, Kururi, they can become "one complete human," and to that end, she intentionally makes her personality, hobbies, and specialties the exact opposite of her sister's. Her chat room handle is "San." In chat, her energy is low, the opposite of Kururi's, but she gets scolded by Kururi for trying to write dirty jokes, showing her true nature hasn't changed. Both sisters are huge fans of Yuuhei Hanejima (Kasuka Heiwajima).