VAMPIRE KNIGHT: MEMORIES

After a fierce battle between humans and vampires, a temporary peace was established, but Kaname continued to sleep within a coffin of ice… Yuki gave Kaname her heart to revive him as a human being. These are the stories of what happened during those 1,000 years of Kaname’s slumber and at the start of his human life. (Source: VIZ Media) — Description from AniList community (anilist.co).