Will the Idol Girl Meet the Light Music Club?

"We finally arrived at the martial arts gym, Yui." Akiyama Mio sighed and held the hands of Yui Hirasawa and Ritsu Tai next to her. But while she was excited, she was also slightly confused. "I remember we started out as a band, right, but now..." She looked down at her gorgeous clothes: "Why did we come to the martial arts hall to sing?" … This is the story of what happens if the light music club goes astray.