Zhen Shi originally thought that her life could not be happier. But when Zhang Xin broke into his life rashly, he began to have doubts about the world he lived in. Faced with his mother's sadness and his lover's persuasion, Zhen Shi had given up on Zhang Xin, but an accident made him find that the world he lived in had become unreal. In the end, Zhen Shi found out that she was the only one who could be kept in the dark. Who is he?