Oreki Houtarou is a high school boy that doesn’t like wasting energy or concerning himself with troublesome things. Nonetheless, he joins the Classics Club at his elder sister's request.
Inside the clubroom, he meets Chitanda Eru, a beautiful girl with large eyes that fill with curiosity once she becomes interested in something. Between her and Oreki’s friend, Fukube Satoshi, the Classics Club is revived with three members, and the club’s first task is investigating the contents of the collection of works the former members left behind, titled “Hyouka”. Thus end Oreki’s days of peace and lazing about on his own.