Guards and Maids

Xue Lei (Zhiyuan) is the personal bodyguard of the crown prince (third prince) Gongsun Shangqian. He has two identities. In addition to being a bodyguard, he is also an assassin on the prince's orders. He acts decisively. In order not to be recognized, he usually wears a mask. The mask is different. He also dresses like an ordinary person, but his brain is elm-headed and he is only occasionally smart. Yudie (Ling Xunyue) is the crown prince and the personal maid of Pei Luofu, the daughter of Pei Shangshu. She is the princess of the subjugated country and the biological sister of the eldest prince's wife Ling Yuyan. After the country was broken, she fled to Jicheng to meet Pei Luofu.