Though I Am an Inept Villainess - Futsutsuka na Akujo dewa Gozaimasu ga

Synopsis

Just as His Highness’s favored butterfly Reirin is beloved by the prince, jealous “court sewer rat” Keigetsu uses magic to swap their bodies—and their destinies. With a looming execution, Reirin embraces her new, healthy body, while Keigetsu learns Reirin’s life isn’t what it seems as she’s pulled into an inner-court conspiracy.