A strong fighter and the Great Detective of Hawk Eyes. Kind-hearted. He wins every contest against Rui. He usually has a sour face, but the corners of his mouth occasionally turn up. Has outstanding reflexes. Dislikes persistent women, but since the protagonist and Akane aren't like that, he treats them normally. Ability: Clairvoyance.

Skilled at parkour. Kind-hearted. First person: I (masculine). A hard worker who often competes with Jin and never gives up even when he loses. Has outstanding reflexes. A Recorder for Hawk Eyes.

Kind-hearted. 30 years old. He was Jin's instructor when Jin was a child, but he can no longer beat him. Calm and composed. People are often intimidated by his sharp gaze. He hides the fact that he loves donuts and cats. Ability: None. A Recorder for Hawk Eyes, ranked 21st.

Loves sleeping. Enjoys drinking Kenzo's tea. Doesn't mind Kenzo's devotion to her. Ability: Can memorize anything she sees and play it back. A Great Detective ranked 27th in Nest. Lazy, but solves cases properly. The Great Detective of Swallowtail. Kind-hearted.

Kind-hearted. Skilled at brewing tea. Ability: None. A Recorder ranked 27th. Often spoils Madoka and is devoted to her. A Recorder for Swallowtail. Loathes Seiichi.

Kind-hearted. A good cook who improved after being taught by the protagonist. Speaks with a regional drawl (Kansai). A Recorder ranked 27th in Nest. Ability: None. Often wakes Madoka up. A Recorder for Swallowtail. Has been friends with Madoka since elementary school.

Extroverted. Can erase his presence at will. Quick to talk to people and make friends. Kind-hearted. A member of Snake Pit along with Yuto and Keigo. Loves spicy food. Hides the fact that he is a phantom thief. A high school student. Intelligent.

Introverted and fully aware of it. Skilled at hacking. Bad at talking to women. Often tells Raika he's too extroverted. Frequently calls Keigo a 'gorilla' and gets hit on the head for it, but keeps doing it anyway. A member of Snake Pit. A high school student. A massive fan and otaku of Nest, collecting their merchandise. Kind-hearted. A companion of Keigo and Raika.

Son of a wealthy family but never brags about it. A hard worker. Friends with Raika. Hits Yuto on the head whenever Yuto calls him a gorilla. Possesses immense strength; can break walls with a single punch. Gets high scores on tests. A high school student. A member of Snake Pit. Kind, calm, and a companion of Yuto and Raika.

Former Rank 1 Great Detective. Ability: To see the past and future of anyone she touches. Cost: Drains a massive amount of stamina, leaving her dizzy. Kind-hearted. Her skills were top-tier when she was Rank 1. Thinks the protagonist is incredibly cute. The protagonist's older sister. A beauty. Second-year high school student.