Ougon no Ouji to Toraware no Cinderella

The unlucky daughter of a count was asked to pretend to be his lover and was suddenly kissed! "You don't look like you're against it. You're overflowing." Julienne, a woman who has lost her father and is treated terribly by her stepmother, is asked one day in town by a mysterious man to pretend to be his lover. After that, every time they meet, he passionately declares his love for her, leading Julienne to fall for him. The beautiful man says, "I can't hold back on how much I want to make all of you mine," and her body trembles with happiness. That's when he invites her to join him at a ball at the royal palace, but her stepmother tries to ruin things! (Source: BisouBisou Comics)