Born into a fallen aristocratic family, Sakurako is forced into a political marriage with Karasukada Touya, a powerful member of the Serpent God clan. However, on the day of her wedding in the spring when she turns 18, Sakurako has a premonitory dream in which she is brutally murdered by her husband, Touya. At this moment, Sakurako awakens to an extraordinary ability to foresee "dangerous futures" through the manifestation of the spirit beast "Kanariya." Knowing that the contents of her dream contain the cause of her future misfortune and hold a clue to avoiding death, Sakurako...!? (Source: Shueisha, translated)