Upon returning to Japan, first-year 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 pianist.
