Back when manga rock was useable, I read this webtoon through there years ago. It was back and white. The premise was about this maid who was an illegitimate daughter of a duke and in order to get out of marrying his real daughter to a vampire, he sends out the mc. I remember this specific instant where the daughter gives mc a face cream that she put bleach into because the daughter was jealous that the boy she liked had a crush on the mc. Ive been looking for this for years.