Houkago Tea Time (放課後ティータイム) is a 5-Piece Japanese Rock/Pop band originating from the manga K-ON! (けいおん!) by Kakifly. The manga was successfully adapted into an anime by Kyoto Animation. The first series was called K-ON! (けいおん!), and the second being K-ON!! (けいおん!!). The manga is about a set of girls in High School who save the Light Music Club (Keionbu in Japanese, hence the name of the manga) from liquidation.