Once a fearless knight in the Razanate Empire, Qatora sacrificed her life to protect a noble youth. Fate saw her plunged into the enigmatic Light of Origin, a realm that revealed a dangerous truth and granted her reincarnation. In her new life as Lyse Winslette, a modest baron's daughter in a nearby domain, she strives to evade the empire due to her restricted knowledge.
By day, Lyse tends to her duties as a handmaiden in the grand palace of Olwen. Her world is rocked when she is selected to serve the visiting Razanate emperor. Unwittingly, she uncovers a state secret that ultimately lands her in a betrothal to an imperial knight. Lyse must utilize her expertise from both lives to extricate herself from this entanglement. However, a peculiar sensation arises when she connects with her future spouse. Who is Sidis and what forbidden knowledge does he conceal?