Gender: Male Age: 15 Hobbies: Reading, idling Specialties: Deduction, observation Height: 172cm Family: Father, older sister Tomoe Oreki (whom he calls "Sister") Birthday: April 28th. Class: 1-B, Kamiyama High School.

Personality: Basically blunt, indifferent, and dry. He has a curt way of speaking and acting, and lacks frankness.

He usually avoids being enthusiastic or giving his best because it's bothersome, but once motivated, he unconsciously pours his energy into problem-solving. He won't hesitate to rack his brain for days if necessary.

His grades are average, ranking 175th out of 350 students, which he doesn't care about. However, his brain works rapidly when he is deducing.

His motto is "If I don't have to do it, I won't. If I have to do it, I'll make it quick," representing his energy-saving philosophy.

While he keeps his distance from others to save energy, he is fundamentally not a very sociable person.

He doesn't bother clearing up misunderstandings about himself, but he hates it when misunderstandings involving others remain unresolved.

Joined the Classic Literature Club, which was on the verge of being disbanded, due to the semi-forced suggestion of his sister, Tomoe Oreki.

He has excellent deductive skills. The ultimate goal of his deductions is not to find the absolute truth, but to reach a reasonable conclusion that is convincing enough to satisfy others.

Judging by scenes of him cleaning or doing laundry, it seems he shares housework with his father.

He is a voracious reader. He doesn't seem to watch TV much at home, preferring to read the newspaper.