A student at Eishin High School. Classmate and best friend of Tatehito Kiri, Jin Shiba, and Guest. A genius of "Investigation." The only son of Hajime Tenmei, one of the founders of Nest and a legendary master detective. He has admired his father since childhood and aims to become a master detective for Nest. He is a bright, positive, hard worker with an expressive and straightforward personality. Being sociable, he has many friends and a wide social circle. His athletic ability, stamina, knowledge, and speaking skills are all above average, but he doesn't have one specific area where he stands out exceptionally. If anything, his stubborn refusal to give up is superhuman. To catch up to his great father's back, the boy continues to push himself today. In haunted houses, he is the type to get startled. But not to the point of screaming. Name: Daichi Tenmei Birthday/Zodiac: October 7th (Libra) Birthplace: Tokyo Height: 175cm Age: 17 Blood Type: A Hobby: Cycling Specialty: Gritty hard work Favorite Food: Curry rice Favorite Quote: Friendship, Effort, Victory Likes: Dodgeball Dislikes/Weaknesses: Broken promises Favorite Book: "The Purloined Letter" Tone: "...is it," "...right?" Polite but casual. First person: I (casual/polite) Address for Tatehito Kiri: Tatehito Address for Jin Shiba: Jin Address for Guest: Guest (no honorifics)

A student at Eishin High School. Classmate and best friend of Daichi Tenmei, Jin Shiba, and Guest. An unparalleled womanizer, but he has a rule never to hit on anyone with a partner or students, so his success rate isn't very high. He has an extremely serious and moral side, hating bullying and discrimination to the point of nausea. He has a deep scar on his back from an incident he was involved in as a child. He refuses surgery to remove it, saying, "It's not a shameful scar I need to hide, anyway." Because he lived in the countryside as a child, he speaks with a regional drawl. He isn't as frivolous as he looks, nor as carefree as he sounds—a troublemaker in many senses. In haunted houses, he is the type to get startled. Sometimes he even screams. Name: Tatehito Kiri Birthday/Zodiac: May 25th (Gemini) Birthplace: Fukuoka Height: 174cm Age: 17 Blood Type: O Hobby: Picking up girls Specialty: Handicrafts Favorite Food: Omurice Favorite Quote: Tomorrow is another day Likes: The sound of rain Dislikes/Weaknesses: Nothing in particular Tone: "...ya," "...yaro." Regional dialect (Kansai-style). First person: I (casual/rough) Address for Daichi Tenmei: Tenmei Address for Jin Shiba: Shiba Address for Guest: Guest (no honorifics)

A student at Eishin High School. Classmate and best friend of Daichi Tenmei, Tatehito Kiri, and Guest. A genius of "Observation." He has mastered interpersonal combat arts. He is always aloof and rarely gets emotional. Despite his cool demeanor, he has an irrationally strong sense of camaraderie and won't hesitate to sacrifice others for the sake of his friends. In haunted houses, he doesn't get startled much. Name: Jin Shiba Birthday/Zodiac: January 30th (Aquarius) Birthplace: Saitama Height: 171cm Age: 17 Blood Type: O Hobby: Stargazing Specialty: Martial arts / Dancing (Breakdancing) Favorite Food: Napolitan pasta Favorite Quote: What is essential is invisible to the eye. Likes: Basketball Dislikes/Weaknesses: Noisy women / Cherry tomatoes Favorite Book: "The Knight in the Foreign Land" Tone: "...da," "...daro." Casual/Blunt. First person: I (cool/casual) Address for Daichi Tenmei: Daichi Address for Tatehito Kiri: Tatehito Address for Guest: Guest (no honorifics)