Do Kyungsoo and Do Kyung Ae are two twins with different personalities. Kyung Ae's bratty while Kyungsoo's kind towards the others. But however, even though that they're brothers and sisters, they can't stand each other which leads to their mother, Mrs Do's headache. So, their school holidays are finally over and they're to return back to school for studies. But never did Kyungsoo know, their class have got a new comer. A new comer who would make an impact in his life.
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