The three artifacts required to bring back hololive Summer have been stolen, and even hololive's leader YAGOO has gone missing. Upon realizing this, staff member Friend A (A-chan) gathers the hololive members, and sets off on a mission to find the three artifacts, rescue YAGOO, and ensure hololive Summer can happen this year. The long-awaited return of hololive Summer... But will that dream be quashed once more this year? Will the joy of the season be stolen again? This summer... the girls' quest begins.