Hundreds of aliens inhabit our Earth today. Some friendly, some belligerent - some are here for research purposes while others came for the sake of committing crime. It is only us humans who have yet to realize their existence.<br>
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One day, a hell of a troublemaker arrives on our planet. Though he is regarded as the smartest man in the universe, he has a major flaw in his personality - he is always causing trouble to bide his time.<br>
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(Source: Crunchyroll)

Studio Pierrot

Aniplex