Ganbare! Kieruna!! Shikiso Usuko-san Anime Details and Episodes People say, there's no one as invisible as Usuko-san. But does that mean she is miserable? Not at all! This a tale of Usuko-san's happy happy life. Read… Series info · Watch free · Trending anime · Airing schedule FormatMangaStatusFinishedCountryJapan Slice of Life Shounen Iris Zero