Strike the Blood

Strike the Blood is a Japanese light novel that follows the story of the world's strongest vampire, known as the 'fourth primogenitor', who emerges in Japan with twelve Kenjuu, causing chaos. To combat this powerful vampire, the government and Lion King send an attack mage called a 'swords shaman', but unexpectedly, an apprentice girl named Himeragi Yukina is chosen for the mission. Armed with the anti-primogenitor spirit spear, Yukina heads to Demon Sanctuary, 'Itogami City', where she encounters Akatsuki Kojou, the mysterious fourth primogenitor. The novel combines elements of action, comedy, fantasy, and supernatural, making it an engaging read for fans of shounen and romance.