Like many traversing themes, it cannot change history or change all of history. In other words, fish and bear's paws cannot have both, but they did not express this idea more convincingly.
Even the sci-fi scene out of reality does not leave as deep an impression as the jumping action of "The Girl Who Flies Through Time".
If it's not a sequel to a connected plot, then wait for the sequel to come out and watch it, and then watch the first episode to see how the first episode is "classic".
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