Rin Hashiba longs for love, despite her skepticism towards gods. Her wish takes an unexpected turn when Char, the demon king of Avalon, literally crashes into her life by breaking through her roof. To address the damage, Char realizes he needs Rin's virgin blood to restore his depleted powers. As their bond deepens, Rin is torn between fear and the allure of Char's intense gaze, unsure of his true intentions.