GA is a class that specializes in the arts at Ayanoi High School. Kisaragi, Nodamiki, Kyoju, Tomokane and Namiko are five students who learn about art.
After discovering that Namiko is staying home sick for the day, the group tries to cope without her. After her return the girls have a sleepover so that they can get their projects completed on time, but due to a off-the-wall dinner not much gets done.
