Halzion Anime Details and Episodes Music video directed by Toshitaka Shinoda for the song Halzion by YOASOBI. Note: There exists two versions of this video; the first being a Japanese… Series info Watch free DetailsFormatMusicStatusFinishedEpisodes1Duration3 minScore71/100SourceOtherCountryJapan GenresPsychologicalRomance TagsFemale ProtagonistDenpa