C218 Sister-in-law who is this

At the same time, the son of the Jing Ninghou Palace had a heartbroken expression, and had been deceived by Gao Jie. Thinking that he was both talented and honest, and had even helped him before, he wanted to befriend him.

In reality, his ambitions were not small. He actually wanted to become sworn brothers with Jing Ninghou, delusional enough to marry Princess Le Chen