Beginning: Doctor Tang, He Chased His Wife And Became A Detective

This book is also called "He Uses Time for the Rest of His Life":
He, Tang Jinhua, was supposed to be a calm and rigorous cardiac surgeon, but because of the appearance of her, Fang Yuanyuan, he was involved in a family storm.
He once thought that he was her guardian and was willing to endure everything silently for her. It was not until the truth was revealed that he realized that she was his hero.
For the sake of his fate, she cruelly pushed him away and used wisdom and courage to weave a protective net for him.
And he put down the scalpel for her and used love to pursue the truth twenty years ago.
He spent the rest of his life guarding her future, but he didn't know that she had already regarded him as everything;
One left and one right, one black and one white, she finally understood that the whole world had already stopped behind her.