Love, Chunibyo & Other Delusions! S01 E03 The Heretical... Pigtailed Girl (Twin Tail)

Yuta tries to decide what club to join, but Rikka is already a step ahead of him. She creates the "Far-Eastern Magic Society" and manages to rope in two members. Given a provisional club status, Yuta revokes his membership... until Shinka joins the club, too.