Kiraware Reijou na no ni, Daiichi Ouji to Keiyaku Kekkon desu ka!?

Kiraware Reijou na no ni, Daiichi Ouji to Keiyaku Kekkon desu ka!? summary: Shina Komatsu, a world-renowned makeup artist in her previous life, was pushed down the stairs by a jealous rival. In the aftermath, she finds herself reincarnated as Elfride, a noble lady from her favorite shoujo manga, The Sparkling Aquamarine. However, she awakens two years before the original story begins—and to her shock, Elfride is already infamous as the most despised noblewoman in high society! Now, Shina must navigate this treacherous world of nobility, where everyone already hates her character. But things take an unexpected turn when the First Prince, the most powerful and sought-after bachelor, suddenly proposes… a contract marriage?! Will Shina, as Elfride, be able to rewrite her doomed fate, win over the prince’s heart, and survive the cutthroat social games—or is she destined to remain the villainess everyone loathes?