Cobalt World Anime Details and Episodes Music video for the song "Cobalt World" by Sangatsu no Phantasia. Series info Watch free DetailsFormatMusicStatusFinishedEpisodes1Duration5 minScore65/100SourceOtherCountryJapan GenresSlice of Life TagsPhotography RelatedKubikiri Cycle: Aoiro Savant to Zaregotozukai (Shared Characters)