done dl, blissful sin but no dl site, YO links got removed bc they dont allow links to be shared so cant ask to reupload: https://www.yaoiotaku.com/forums/topic/20864-oshiete-katekyo-259451236012390124591248612461125199829-by-sakira-eng/
found on archive: https://archive.org/details/manga_Oshiete_Katekyo
Oshiete Katekyo