My Son-in-law Is A Doctor

Jack’s family was destroyed ten years ago, but all he could do was run.
Ten years later, he returned in glory with respect from all over the world. And this time, he was going to repay Lily, the person who saved him while taking revenge on those who killed his family.
Once he came back, he stood before her and said, “From now on, as long as I am around, I will let you have the world in your hands.”