Karen Anime Details and Episodes 1-2. Usu Kagami (薄鏡, The Thin Mirror); Comic Mujin 2000-09, 11 3-5. Karen (KAREN); Comic Mujin 2000-04, 05, 06 6. Practice Hard (Practice Hard); Comic… Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresHentai RelatedKaren (Adaptation) CharactersRyo OkawaDojima (Supporting)Aki (Supporting)Akigi (Supporting)