Suzumiya Haruhi no Seitenkan, or (roughly) "The Gender-Flip of Haruhi Suzumiya" in English, is a fan creation based on the Suzumiya Haruhi franchise that serves to tell what the universe would be like if all the male characters were female and vice-versa. Started off as just a random musing that became quite popular because of the difference in dynamics from the flipped gender roles and dynamics that gives a distinctly different impression from the original. Such as changing Kyon's cool snarks into Kyonko's moe sass.