Sports teacher, who always shows off with his muscles.

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. Despite that, Eriko and her friends are joined by new friends. They aim to get through high school life together.
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(Source: Anime News Network)

High school is a time of new opportunity, new adventures... and the same old silliness that you thought you grew out of. Yuma, Eriko, and Ayano are three friends starting their years at an all-girls high school, and are forced to learn just how things run in this new crazy world. Classes, cliques, and even sex... nothing is avoided when high school girls are let loose!

Kaoru Matsuo