エーデルワイス

How hard would you study if a good GPA could take you to a sex paradise? Haruma Kazushi and his buddies are fed up with their poor grades and boring high school life. Just when their sex crave was ready to burst out, they found out about the student exchange program that promises to send the best and brightest to an all-girls boarding school on an isolated island: A ticket to sex paradise! Lying in wait for Kazushi and his friends was an unimaginable environment and a garden of women hotter than they could imagine. [Edited from MangaGamer]