A-Channel
Tooru and Run are best friends forever, therefore when Tooru learns that she's managed to enter the same high school as Run, she runs to tell her... only to get Run at a compromising position with still another girl, Yuko. Needless to mention, making matters a bit awkward at school, together with Tooru fending off people who might be thinking about Run while Yuko along with also their other girlfriend, Nagi, have to bargain using Run penchant for play.
(Source: Sentai Filmworks)