Mikoto is a fairly normal student. He gets good grades and is a good volleyball player. When transferring to Aoba Johsai High School and getting dragged into joining the volleyball club, things become anything but normal. A rivalry quickly develops between him and the official setter... and just on the court. But little does anyone know, Mikoto is not what he seems. In fact, he isn't even a he; he's secretly a she. No one must know Mikoto's secret, but when you're a female forced to join a male volleyball team, things are about to get rough.