Aqours won it all in Love Live, their last performance for Uranohoshi Girls' High School. Its first- and second-year students are now preparing for life at a new school - only to face loads of unexpected trouble! And the third-year students have set off on a graduation trip – and gone missing! As the group's members drift apart, they quickly realize just how much they meant to each other. What will Aqours do to make themselves take the next step forward towards the dazzling future they desire?