I Sekai Kongou dai Butoukai異世界混合大舞踏会Music · 1 episodes · Finished5.0AniList Watch trailerFantasyMusicMusic video for Gen Hosino's song I Sekai Kongou dai Butoukai feat. ObakeYoukai · Dancing · Coming of AgeTrack this animeLog in to save progress, score it and add it to your lists.Log inSign up