Houtarou Oreki is a high school student who lives his life conserving as much energy as possible, only delving into matters that feel absolutely necessary to him. So when his older sister forces him to join the Classics Club to keep it from disbanding, he finds himself terribly inconvenienced. To his surprise, Oreki finds that the Classics Club already has a single member: the inquisitive Eru Chitanda. Not long after, Oreki's friends—the knowledgeable Satoshi Fukube and the headstrong Mayaka Ib