Hyouka Light Novel Volume 1 to 6

Oreki Houtarou is a self-proclaimed “energy-saver” – that is, he will not actively waste energy doing things that aren’t necessary. Though he had no interest whatsoever in joining any clubs upon entering Kamiyama High School, he was commanded by his older sister Tomoe to enter the school’s Classics Club, which was in danger of getting abolished as all previous members have graduated.Together with his old friends Fukube Satoshi and Ibara Mayaka, as well as the elegantly ladylike and curiously inquisitive Chitanda Eru, the newly reformed Classics Club find themselves involved in all sorts of mystery-solving escapades. Houtarou soon finds out that the Classics Club, as Tomoe has promised, is actually “quite interesting”.And so begins the “Classics Club Series”.

Hyouka - Volume 01 - Hyouka - You can't escape The niece of time
Hyouka - Volume 02 - The Credit Roll of the Fool - Why didn't she ask EBA
Hyouka - Volume 03 - The Kudryavka Sequence - Welcome to KANYA FESTA!
Hyouka - Volume 04 - The Doll that Took a Detour - Little birds can remember
Hyouka - Volume 05 - Approximating the Distance between Two People - It walks by past
Hyouka - Volume 06 - Even Though I'm Told I Now Have Wings