Hyouka—At his older sister’s (Tomoe Oreki) request, disenchanted student Hotaro Oreki joins the Kamiyama High School's Classic Literature Club to prevent it from being abolished. He then meets Eru Chitanda, a kind-hearted, inquisitive, and slightly ditzy girl with boundless curiosity and a knack for getting him caught up in all sorts of mysteries and trouble. After Hotaro shows his logical deduction abilities to solve mysteries, Eru decides to join the club, as do Satoshi Fukube and Mayaka Ibara. The four will try to solve the various mysteries they find.