After 500 years, the Crimson Demon Sakura sets out on a journey to find the crystal fragments of her deceased lover's life, in order to bring her lover back to life. Yuya, the head of the Kaga clan, a demon hunter, is pursuing her. The two embark on a chase in modern-day Japan!
(Source: Akita Shoten, translated)
— Description from AniList community (anilist.co).
