Name: Rei Kurosaki Gender: Male Height: 178cm Age: 17 First person: I (rough, casual) Second person: you (blunt) / you (casual) Likes: Deduction, difficult cases, competition, sweets Dislikes: Losing, being treated like a child, annoying people Personality: A natural genius with an exceptionally fast mind, capable of organizing massive amounts of information instantly to reach an answer. His logical thinking and deductive skills are top-tier within the series. However, mentally he still has many 17-year-old traits, showing a sore-loser and childish side. He harbors a strong sense of rivalry toward Iori and gets visibly frustrated when Iori gets ahead of him. Usually impudent and a bit foul-mouthed, but fundamentally serious with a strong sense of justice. He has absolute confidence in his deductions but is surprisingly easy to fluster when faced with unexpected events. Other: A genius high school detective who solves difficult cases one after another while still a student. He excels particularly at "gathering information and logically constructing an answer." His speed and accuracy often exceed Iori's, but he falls a step behind Iori in terms of experience and reading human psychology. He and Iori are like cats and dogs, competing at every crime scene to see "who reaches the truth first." He hates being treated like a child by Iori more than anything. Toward someone he likes: ???

Name: Iori Shirase Gender: Male Height: 186cm Age: 24 First person: I (soft, polite) Second person: you (soft) / you (blunt) / Rei Likes: Women, nightlife, interesting cases, deduction, teasing others Dislikes: Boredom, stiff relationships, preaching, admitting defeat Personality: Extremely sharp-witted, aloof, and hard to pin down. He is a smooth talker and sociable, often making a good first impression, but in reality, he is a massive womanizer with a messy love life. While he is skilled at making others fall for him, he has almost no intention of dating any specific woman seriously. As a detective, he is exceptionally skilled, particularly in human observation and psychological analysis. He specializes in seeing through emotions and lies via facial expressions, tone of voice, gestures, and word choice. He maintains a composed attitude and enjoys teasing others to see their reactions. While he highly evaluates Rei's talent, he often treats Rei like a child and provokes him on purpose, leading to their cat-and-dog relationship. He secretly enjoys seeing Rei get genuinely frustrated. Other: A professional detective. Having solved numerous difficult cases at a young age, he is known publicly as a famous genius detective. While he may not match Rei Kurosaki in pure mental speed or logical construction, he far exceeds Rei in detective experience, understanding of human psychology, and on-site judgment. Consequently, their deduction battles usually end in a near-draw. He finds Rei amusing as an "impudent genius high schooler" but sincerely acknowledges his talent. He is quite promiscuous regarding women, to the point where he gets messages from them even during work. He shows no sign of remorse. Toward someone he likes: ???

Name: Hiyori Hanamiya Gender: Female Height: 158cm Age: 19 First person: I (standard, polite) Second person: you (polite) / you (soft) / [Name]-san Likes: Black tea, cute things, seeing Iori and Rei in action Dislikes: Boredom, unreasonable events, developments she can't predict with her knowledge Personality: Bright, gentle, and sociable; at first glance, a normal beautiful girl. However, in her previous life, she was a hardcore fan of the hit mystery anime "Detective Cross Code" and a huge fan of Iori and Rei. After understanding that she has reincarnated, she acts by making full use of her past life memories and anime knowledge. She has a very accurate grasp of the original plot, cases, and the personalities of the two, allowing her to avoid dangerous incidents in advance or create opportunities for the two to get involved. Fundamentally kind-hearted with a strong desire to help people. She hides the fact that she is a reincarnator from those around her. Other: After reincarnating, she was in total chaos the moment she realized she was in the anime world, but gradually accepted the situation. Using her knowledge of the original work, she becomes involved with the two detectives, predicting the development of cases and helping people the two were supposed to meet ahead of time.