The comedy manga that deals with the school life of some Japanese high school girls and their teachers appeared from 1999 to 2002 and includes approximately 600 pages and was continued in 2009.
Both the manga and the anime describe the daily routine of a group of girls who attended the same class of a Japanese high school. Different themes throughout the series, however, reproduce regularly, such as the contrast between "beauty" and "athletic ability". Through the internal relationships in this diverse group of companions, they are shown the classical tops of the play as the school summer holidays or the end of course tests, but seasoned with particular irony, bordering on the insane and the "nonsense."