The time has come for Franchouchou to take the stage at the Saga Rock musical festival! But clouds are starting to gather, with the thunder and lightning causing Ai to freeze up in fear. Who will help re-animate her so that the show can be a success?

The girls of Franchouchou are going to have a dedicated concert! With a crowd capacity of five hundred! And Kotaro's plan to get them ready is... training in the mountains? Will his braindead idea pay off?