Upon returning to Japan, freshman high school student Rinku Aimoto enrolls at Yoba Girls' Academy and meets Maho Akashi, the school's broadcaster and DJ. Rinku soon develops an interest in DJing after watching a performance by Yoba's famous DJ unit "Peaky P-Key", and she and Maho form a group of their own called "Happy Around!". They are later joined by Muni Ohnaruto, a talented illustrator, and Rei Togetsu, a young lady who wishes to break free from her parents' strict expectations.