I'm looking for a novel. Can't remember a title, but I remember that the ML married the MC and had a child but ML took revenge from his family (he's a prince). His uncle was killed but was disguised as an accident on the horse when he was young. Um, I also remember that there was a young kid, his brother, that MC and ML took care of. The young kid doesnt talk but MC was gentle to the kid and let him play with their baby. When ML killed the royal family, he stand in as a regent emperor for the young kid until he's 18 and leave the palace with MC and their kids to wander outside the country.