How to Train Your Dragon is undoubtedly one of the most outstanding cartoons of its time. Especially driven by the success of the film, Universal has also created derivative content such as animated series and games. A few days ago, the last movie in the series, "How to Train Your Dragon: The Hidden World", revealed to the outside world that the film is not only the last animated film, but also summarizes the news of the entire "How to Train Your Dragon Universe".