Since she was a small kid, she had put up a wall of hatred between them. To her, he was the most hateful person in the entire world. To her, everything he did was just a part of his game. But since he was a small kid, he had put up a wall of love between them. To him, she was the most precious person in the entire world. To him, everything he did was a part of winning the heart of the girl he loved. She gave him seven days to prove what he needed to prove. She gave him a seven-day limit. What could seven days did to people's heart and mind? [Story was written in Vietnamese]