Eriko and her friends Yuma and Ayano are excited about entering high school. Their excitement leads to their breaking of the rules when they toured the school before the opening ceremony. They find out their preconceptions about the all-female school may not be as true as they had first thought. They encounter Akari and her two friends Kyoko and Ikue, at first Akari and her friends think that Eriko and her friends are high seniors but when they find out that they are like them new students they become rivals at first then they become friends.