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.

(Source: hololivepro.com)