As the founding members of the Light Music Club approach graduation, they plan to make the most of their remaining weeks in school by embarking on an overseas adventure. While Hawaii, New York, and Dubai are all tempting destinations, they ultimately choose London with the help of their beloved pet turtle, Ton-chan. During their time in London, Yui Hirasawa, Mio Akiyama, Tsumugi Kotobuki, Ritsu Tainaka, and Azusa Nakano will explore iconic landmarks, perform live music for locals, and indulge in delicious cuisine, all while stumbling through their travels in their signature clumsy fashion. The end of their high school days may be near, but they will still share heartfelt songs and goodbyes before departing, knowing that their unbreakable bond of friendship will endure long beyond graduation.