Yanyu

Though it's rare for a girl to be the heir of Nantu's throne, princess Yanyu has proven herself to be more than worthy of the title. It also certainly helps that she is both the apple of her father's eye as well as a favourite amongst the commoners - her birth ushering in a golden era of prosperity for the kingdom of Nantu.

official thread

Her real name is Huineng. She's princess Yanyu's handmaid and body double.