I Committed a One-Night Mistake with the Young Lady?

A modern woman reincarnates as a novice pharmacist in a novel where the saint is destined to defeat a villainous noble. Unfortunately, she ends up working for the villain’s household. But when she meets a delicate and beautiful “young lady” instead of the feared villain, she decides to protect and bring happiness to her. What she doesn’t realize is that this “lady” is actually the villain himself in disguise. Read the MANHWA (Cometi um Erro de Uma Noite com a Jovem Senhora?, ¿Cometí un Error de Una Noche con la Joven Dama?, Did I Make a One-Night Mistake with the Young Lady?, Yeojangnimgwa Haru-ui Mistake-reul Haess-eoyo?, Ojousama to Ichiya no Ayamachi o Okashimashita ka?, Wǒ zài yīyè zhōng gēn nǚshì fāshēngle cuòwù ma?) online at ChapterCodex for free, with non-intrusive ads and the latest chapters updated.