My Lady is a Young Master

What would you do if the sweet young lady you’ve been caring for turned out to be a handsome young lord and a future villain? Lelia Sharett, a newly hired apothecary of the Roselle household, suddenly regains memories of her past life and realizes she’s living inside her favorite novel, The Saintess Smites Evil. Worse, she remembers that the story’s villain, Clovis Roselle, lives here. Bracing herself, Lelia goes to greet him, only to meet Clarise, a beautiful and sickly girl suffering from her family’s neglect. Determined to help her, Lelia grows close to Clarise, unaware that her lady is harboring a big secret: Clarise is actually Clovis, living in disguise in order to survive.

(Source: WEBTOON)