Cobalt Memories Anime Details and Episodes Music video for the song Cobalt Memories, animated and musically written by Harumaki Gohan, featuring vocals by Hatsune Miku. Series info Watch free DetailsFormatMusicStatusFinishedEpisodes1Duration4 minScore52/100SourceOriginalCountryJapan TagsFemale ProtagonistPost-ApocalypticCoastalVocal Synth RecommendationsSeventinaGolden RayHotaru wa InakattaDreamless DreamsE no Umakatta TomodachiPoka Poka PlanetWORLD'S END UMBRELLA