Home/Discover/Himitsu no Akko-chan: Umi da! Obake da!! Natsu MatsuriHimitsu no Akko-chan: Umi da! Obake da!! Natsu Matsuriひみつのアッコちゃん 海だ! おばけだ!! 夏祭りHimitsu no Akko-chan: Umi da! Obake da!! Natsu Matsuri1989 · movie · 1 episodes▶ Watch episode 1+ My list OverviewEpisodesThe storymovieEverybody goes to the ocean for a summer festival and the guys sneak off to a cursed island.MagicComedyKidsShoujoEpisodesChoose your next chapterEpisode titles follow your spoiler shield.Edit watched progress1Episode 124 min▶CharactersMeet the castGanmo UnohanaChikakoKankichi NaniwaDaisaku AkatsukaMore in this worldRelated animeHimitsu no Akko-chan (Movie)movie · 1989