March 25th — Just another day during spring break.
Koyomi Araragi, a second year high school student at Naoetsu High School, befriends Tsubasa Hanekawa, the top honors student at his school. Tsubasa mentions a rumor about a “blonde vampire” that has been sighted around their town recently. Koyomi, who is usually anti-social, takes a liking to Tsubasa’s down-to-earth personality. That evening, Koyomi encounters this rumored vampire: she is Kiss-shot Acerola-orion Heart-under-blade, also known as the “King of Apparitions.” The blonde, golden-eyed vampire cries out for Koyomi to save her as she lies in a pool of her own blood, all four of her limbs cut off. Kiss-shot asks Koyomi to give her his blood in order to save her life, and when he does, the very next moment he awakes, Koyomi finds himself re-born as her vampire kin.
In the spring of his second year of high school, Koyomi Araragi met the beautiful vampire Kiss-shot Acerola-orion Heart-under-blade. Koyomi saved Kiss-shot, who was on the verge of death with all four of her limbs cut off, but only at the expense of becoming her minion and a vampire.
In order to go back to being a human again, you must take back all of Kiss-shot's limbs.
After receiving advice from Meme Oshino, an expert in the supernatural, Koyomi prepares to go into battle. Awaiting him are three powerful vampire hunters -Dramaturgy, a giant vampire hunter who is a vampire himself. Episode, a half-vampire who wields an enormous cross, and Guillotinecutter, a quiet man who specializes in killing vampires.
Will Koyomi be able to take back Kiss-shot's limbs from the vampire hunters? Amidst the soft spring rain, the curtain rises on this fateful blood bath…