Okabe Rintarou, a university student who refers to himself as Crazy Mad Scientist Hououin Kyouma and his lab's members work on a microwave device that can transfer messages to the past. Without getting captured, they should get it working in order to beat the evil organization, SERN and stop their evil plans. Written by j4x

Oreki Houtarou is a minimalistic high school boy. One day, he joins the Classic Literature Club at his elder sister's request. There he meets Chitanda Eru, Fukube Satoshi, and Ibara Mayaka. Chitanda is a calm beautiful girl but she turns into an embodiment of curiosity once she says, "I'm curious." Fukube is a smiling boy with a fantastic memory who calls himself a database. Ibara is a short girl and is strict with others and herself. They begin to investigate a case that occurred 45 years ago. Hints of the mystery are buried in an old collection of works of the former members of Classics Club. The collection is titled "Hyouka."