Ojamajo Doremi: Heartwarming Theater is a 5-episode Flash animation spin-off series produced for the Ojamajo Doremi 20th Anniversary Thanks Festival crowdfunding campaign in 2020.
AnimePiracy is a site to watch online anime like Ojamajo Doremi: Heartwarming Theater SUB online GoGoAnime, or you can even watch Ojamajo Doremi: Heartwarming Theater in HD quality just like KissAnime and 9Anime.