In a substitute marriage, she became his wife that everyone avoided. His life experience is a mystery, he is aloof and taciturn, but he is gentle to her. She thought this was a contract marriage, but she gradually gave up her sincerity, but she didn't know that a contract swap twenty years ago was quietly surfacing. When her identity was revealed and her blood ties were restored, she realized that this seemingly accidental marriage might have been destined for a long time. And he was telling her from beginning to end, no matter who you are, I have always chosen you.