Dokuganryuu Masamune: Sengoku no Arcadia Gaiden Anime Details and Episodes Harlock goes to Sengoku era in Japan and meets Masamune Date. Series info Watch free DetailsFormatMangaStatusAiringSourceOriginalCountryJapan GenresFantasySci-Fi TagsHistoricalSamuraiWarFull Color RelatedCaptain Harlock (Shared Characters) CharactersCaptain HarlockKei Yuki (Supporting)Tadashi Daiba (Supporting)Yattaran (Supporting)