 If you liked
Beauty Pop
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 ...then you might like
Tonari no Kaibutsu-kun
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Similar characters and feeling.
Kiri is a very similar character to Shizuku in that both of them are 'emotionless' but they are really good at what they do.
Yamaken is a very similar character to Narumi in their attitudes towards the main girl. They also wonder why they like the girl in the first place, because she isn't all that cute. The main girl is oblivious to their feelings.
There is also some family drama, and the mother of the main girl is away from home working in both cases.