C37 Brother-in-law

Ye Dong nodded with satisfaction. The little emperor then said, "Brother-in-law, now you are going to be my brother-in-law. You must treat my Jingyue sister better."

Is there a need for you to teach me this? Ye Dong pointed to the door and said, "Go and see your sister Rou-Er and the others. Which one of them said I don't treat them well? My wife doesn't treat any of them the same