Yui Hirasawa has no clue which club to join, but she’s determined to do something this year. As luck would have it, she discovers a flyer for the Light Music Club and decides this is the club for her. But there's one problem: She first must learn guitar!

Misora Kanata is a first-year student on the Takanosaki High School cheerleading team. She won a national championship in middle school, but can’t jump after a mistake in a competition. She befriends Suzuha, Shion, Anna, Onka, and Megumi to form the PoMPoMs. Their new team goes beyond cheerleading to reach the hearts of the people they cheer on. They might just change the world!

Each episode follows Fukuzou Moguro, a traveling salesman, and his current customer. Moguro deals in things that give his customers their heart's desire, and once his deals are made and their unhealthy desires are satisfied, Moguro's customers are often left with terrible repercussions, especially if they break the rules of his deals...

With graduation right around the corner, every member of the Light Music Club except for Azusa will be leaving for good. But the girls aren’t going to let something as silly as graduation tear them apart! For their final hurrah, the girls are going on the ultimate vacation tour— all the way to London! Their overseas journey will lead them on a trip of discovery and friendship as they take the stage one last time for their final encore together.