Kotetsu no Daibouken Anime Details and Episodes The Kotetsu no Daibouken manga follows the story of Linn and Tatsuya far beyond the limited scope of the OAV series. Series info · Watch free · Trending anime · Airing schedule FormatMangaStatusFinishedSourceOriginalCountryJapan Action · Adventure · Ecchi Urban Fantasy · Shounen · Monster Girl · Female Protagonist · Primarily Female Cast Kotetsu no Daibouken (Adaptation)