Zixing's real name is Ge Shuxing, the rich daughter of the multinational group Mu Qister. She has an extremely handsome superstar boyfriend who loves her wholeheartedly and a die-hard best friend. Everything is just like the most bloody idol drama. But the appearance of that boy changed her unchanging world. He knew everything about her and even knew that she had dual personalities. Why did he know everything that even the people closest to her didn't know? Who was he?