Watashi no Oniichan Anime Details and Episodes A series of bishojo centered manga booklets. The booklets were sold with a limited edition plastic-figure assembly kit, designed by Ohshima Yuki, of the… Series info Watch free DetailsFormatMangaStatusFinishedScore51/100SourceOriginalCountryJapan GenresComedySlice of Life TagsPrimarily Child CastAnthologyPrimarily Female CastSchoolCute Girls Doing Cute Things RelatedMato-chan (Related)