Watch Oyururi Mantama Nikki Watch now on Miruro - Free Anime Streaming Third part of the Mantama series. Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresComedySlice of Life TagsAutobiographicalSeinen RelatedYuugen Mantama Nikki (Prequel)Mankitsu Mantama Nikki - Shinyabin (Sequel)