Okay so I'm trying to find a story here how it was~
So Taehyung was going to get married with a boy I don't exactly know the name). He was really rude with everyone even his own parents. Taehyung and the boy hated each other. Taehyung and the boy were given a chance to live with each other for sometime before the marriage....that's when that boy found another who looked same as him(Jungkook). He made a deal with Jungkook to take his place for a sometime, in which they eventually fall in love but the deal was over and kookie went back from where he came. Taehyng git to know about all this and he try to find Jungkook. During his search he got to know that Jungkook was that boy's twin. And at the end he found him.
The end
Can anyone help me find this book.