Nengan no Akuyaku Reijou (Last Boss) no Karada wo Te ni Ireta zo!

A sickly girl named Elizabeth has been reincarnated as an otome game villainess! She begins her life anew, blissfully unaware that her fate is to be killed by the heroes. She might enjoy a healthy life now, but will she be able to turn fate on its head?!

(Source: Kodansha USA)