You can refer to Qiao Feng in Tian Long Ba Bu. At the beginning, the starting point was very high, Nan Murong and Bei Qiao Feng, the leader of the Beggar Clan. It was very beautiful and had an identity, but later it was his true identity that kept him struggling.

Identity and status are not good. This is very similar to Qiao Feng. Jin Yong’s works are very good, you can refer to them.

I think we can start with an event that reveals his starting point and identity. In this event, there is also a foreshadowing that his status is not good, and it also brings some suspense and mystery. Then starting from this incident, a series of things will happen. It is for reference only. How to write it depends on the author's idea.