Geu Angnyeo, Namjaimnida

Daughter of a deposed baron, Becky is sold by her father to the Archduchess Vernum. Arriving at her new masters, she becomes friends with Princess Liande, as beautiful as she is surly. But as the two young women grow inexorably closer, a question from Liande will cause trouble for Becky: “What would you say, if I were a man?”

(Source: WEBTOON, translated)