Though I Am an Inept Villainess: Tale of the Butterfly-Rat Body Swap in the Maiden Court (Manga) Vol. 2 - Satsuki Nakamura - Bog

"After a rocky start, Reirin and Leelee have no time to lose before they must compose themselves for the Ghost Festival at the Maiden Court. There, Reirin must tread a tight line between the villainess role she's been cast and employing a diplomatic tit-for-tat of her own: confronting Kin Maiden Seika and her menacing court lady Gayou's plots. Keigetsu, meanwhile, is pushed to wits' end by her new body's precarious health-the risk of her plot's discovery rises!"--