As maidens from the Five Clans battle for the Crown Prince’s heart,jealous Keigetsu uses forbidden magic to swap bodies with the beloved Reirin. Switching places does not guarantee happiness for Keigetsu with her new body's ill health leaving her hanging on the verge of death. Meanwhile,Reirin,now wearing the face of a scorned outcast,must answer for Keigetsu’s crimes in a dangerous trial.

The unlikely pair become increasingly entangled in each other’s lives and they will need to work together to survive after discovering the dark conspiracies brewing beneath the palace's genial surface. To confront the deadly threats lurking in the shadows,Reirin must embrace her new identity and defy their expectations of the court's inept villainess.

Through the actions of Reirin and Keigetsu, the series of disturbances caused by a curse in the inner court have settled down.
Through their swap, Reirin and Keigetsu learned of each other’s character, and a friendship was budding between the two of them.

Seasons pass, and we are now at early autumn. The location of the ritual where the Crown Prince and the Maidens wish for a bountiful harvest (the Harvest Festival) has been set within the southern lands ruled by the Shu clan. With no consort as guardian, Keigetsu arduously continues with preparations despite feeling the pressure as the host of the Harvest Festival. Meanwhile, Reirin is wholeheartedly supporting Keigetsu while being thrilled about her first royal outing.

However, right upon arrival, an unforeseen accident occurs and the ritual is interrupted. An agitated Keigetsu’s spell runs out of control, and she once again swaps bodies with Reirin. On top of that, among all the confusion, the post-swap Reirin is abducted...!?

Reirin’s two overprotective brothers Kou Keikou and Kou Keishou get involved and the situation heads in an unexpected direction.
Who is the new mastermind who is sneaking up in order to frame Keigetsu...?

The gratifying tale of switched fates brought to you by two girls who are polar opposites—the curtain rises on the second act, "The First Royal Outing" Arc!