 If you liked
Sumomomo Momomo: Chijou Saikyou no Yome
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 ...then you might like
Seto no Hanayome
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Both very similar in every aspect.
A lot of weird humour and the typical "strange girl who falls in love with a boy who doesn't really seem to cope with that love".
This is the same in most ways. arranged marriage and there Both funny as hell