The second legitimate daughter of the former Imperial Censor Yang Censor. Her father was wrongfully accused of forming cliques and pursuing private interests, leading to his execution and the exile of her entire clan. During exile, the clan perished from bandit attacks with no survivors. She was protected by a loyal maidservant who assumed her as the maidservant's deceased niece, turning her into a slave. She was frail since childhood and raised in a manor on the outskirts of the city. Wen Ling recognized her true identity and took her in as a servant renamed Xiaofa. Yang Lan pledged loyalty to Wen Ling and hopes to one day clear her clan's name.