This is the first volume of the Strike the Blood manga adaptation.
- Chapter 1: The Teenage Primogenitor
- Chapter 2: The Watcher
- Chapter 3: Armed Apostle
- Chapter 4: Before the Storm
- Chapter 5: The Eastern Battlefield
Kojou Akatsuki lives on the artificial island of Itogami, and he has a secret: He's the "Fourth Primogenitor," the most powerful vampire in the world. He's carefully kept this dark knowledge from his family and friends, but one day, a beautiful girl named Yukina Himeragi appears before him and tells him that she knows who he really is—and that she's been sent to...kill him?!
Chapter 1 Edit
High school student Kojou Akatsuki is suspected of being a powerful vampire known as the Fourth Primogenitor. On his way home from studying, he senses that he's being followed by a girl and evades her. He soon sees her being harassed by two demons, causing her to start a fight. Kojou steps in before things escalate further. He soon catches a glimpse of her panties, and the girl leaves in disgust. Afterwards, he finds a dropped wallet and learns that the girl's name is Yukina Himeragi.
Chapter 2 Edit
The chapter starts with a flashback to when Yukina is assigned the task to observe the Fourth Primogenitor. Returning to present time, Kojou fails to escape her homeroom teacher, Natsuki Minamiya. Later, he is confronted by Yukina, who wants her wallet back. Upon hearing her growling stomach, they head to a fast food joint, where she explains her motives.
Chapter 3 Edit
The demons who harassed Yukina are confronted by a young blue-haired girl and blonde-haired man with a monocle. The next morning, Kojou learns that Yukina is moving to his apartment next door. They later agree to go shopping together.
Chapter 4 Edit
After finishing her shopping necessities, Yukina and Kojou meet Asagi. Later, Nagisa suggests a welcoming party for Yukina. Afterwards, Kojou and Yukina head to a convenience store, where they are discovered by Natsuki Minamiya. An explosion occurs, allowing them to escape.
Chapter 5 Edit
Suspecting a Beast Vassal behind the explosions, Yukina tells Kojou to go home while she investigates. She encounters Rudolf Eustach and Astarte, and engaged in combat. Kojou arrives just in time to save Yukina's life.