Yang Mengtong and Shen Siqian were sisters who grew up together. He Shiyu was originally Shen Siqian's boyfriend but fell in love with Yang Mengtong for various reasons. Shen Siqian jumped off a building and broke her legs. Yang Mengtong could only break up with He Shiyu and marry the wealthy son Qu Jingjiang, while He Shiyu I can only take care of Shen Shenqian for the rest of her life, and the lives of the four people have changed drastically since then. Many years later, when they each have families and children, although I suddenly look back, I have always loved you from the beginning to the present, but fate has made it impossible for us to go back...