Mei is a lonely, sad man. He has lived an inhuman life since he was a child, because he wants to protect the person he loves, who is also his only relative. His only happiness comes from the man who was injured for him, the man whose heart ached for him - Zhao Xize, but fate made him meet Kong Fan, that man, he loved Mei, But they can't fall in love, because he is his sister's lover, and his life is destined to live for her. How can he fall in love with his sister's lover? What should he do with him so that they are no longer involved? How can he accept the injury that fate has dealt to him, and how can he let this injury fade away from his heart? What will be his ending?