Futsutsuka na Akujo dewa Gozaimasu ga: Suuguu Chouso Torikae Den EP1 - Though I Am an Inept Villainess

Several noble clans live within the Maiden Court, a subset of the Kingdom of Ei's inner court. Reirin the Kou clan Maiden is beautiful and brilliant, currying the favor of Crown Prince Gyoumei. On the other hand, Shu clan Maiden Keigetsu is infamous as a villainess, hated by everyone in the court. On the night of the Double Sevens Festival, Keigetsu uses forbidden magic to swap bodies with Reirin. By the time "Reirin" wakes, Keigetsu's execution has already been set. But even in this time of peril, the frail Reirin is actually delighted that she has gained a healthy body...