 If you liked
Bokusatsu Tenshi Dokuro-chan
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 ...then you might like
Akuma no Memumemu-chan
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Both Memumemu-chan and Dokuro-chan treat about a supernatural girl (a demon in Memumemu-chan and an angel in Dokuro-chan) meeting and starting to live with a normal teenager boy, with both male characters being mistaken as pedophiles through their anime. Memumemu-chan is way more lighthearted, however.