Princess's Little Brother

Xiao Ning accidentally transmigrates as the heir to a princely mansion, disguises herself as a man, and is forced into a marriage with the princess. Fearing her identity will be exposed and put her life in danger, she goes to break off the engagement, where she meets Lin Zhao, the princess's most cherished companion, and adopts him as her little brother. Unexpectedly, Lin Zhao is actually a man disguised as a woman and the true princess. With their identities swapped, they fall in love over time. Facing the treacherous court politics, they decide to join forces and choose a new way of living.