Was the Ancestral Grave in the Right Place or the Wrong One?

Looking for a Book! About a Male Couple

I liked this a long time ago, but forgot the title. Searching by the protagonist's name didn't help either. Roughly, the male lead was sold to a small village, where a kidnapped girl looked after him until he was three. The girl's name was Su Wan. Later, the male lead's family brought them back to the Lin family.