C521 Princess
After Murong Shang and Yuchi got married, he couldn't leave A Country. What followed was basically old king teaching Murong Shang.
In a few more years, old king would abdicate, and Murong Shang would be able to support the entire country.
During this period of time, Yuchi had been by Murong Shang's side. Because she grew up following the rules of the princess