 If you liked
The Dragon Next Door
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 ...then you might like
Mamono-tachi wa Katazukerarenai
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These two manhwa have dragons in common, that are very proud of themselves and quickly can get angered when their mistakes and such are revealed by the person next to himself.
*Both have good and funny moments.
<> TDND is variable in subjects, Mamono-tachi wa Katazukerarenai is completely focused on all aspects of cleaning.