 If you liked
Kenran Butou Sai: The Mars Daybreak
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 ...then you might like
Mouretsu Pirates
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Both stories are about pirates and are both sci-fi like, but Mars Daybreak is set well on Mars. Both anime have crew that are not what you would say as normal, but they just put more into it. I find them both to be funny, and the plan they come up with is just out of this world.