Feature film that continues the story of the Japanese anime series following four high school girls who form a friendship at their music club. This film follows the girls - drummer Ritsu Tainaka (voice of Satomi Sato), bassist Mio Akiyama (Yôko Hikasa), keyboard player Tsumugi Kotobuki (Minako Kotobuki) and guitar hero Yui Hirasawa (Aki Toyosaki) - as they take a post-graduation vacation together. Their destination is London, home to many of the bands they admire and steeped in music history. What adventures will the girls get up to as they stand on the threshold of adulthood?