Jungsoon and Jungkook, twins, they're very close. They met Jimin, both fell in love with him. Jungkook tries his best to distance himself as he didn't want to hurt Jungsoon, after knowing that she likes Jimin. But that wasn't the case, Jimin seems to like him more. When Jungsoon found out about this, she got jealous and develops hatred towards her twin. It caused a big fight and Jungsoon's hatred went to the point of hurting Jungkook, even causing him to almost lose his life... What will happen? Will Jungsoon's hatred disappear? Or will it stay forever?