Strike the Blood Manga

The fourth primogenitor is the strongest vampire who exists only in the world of legends. Yet when this masters the Twelve Kenjuu, the spread of the catastrophe of the vampires will appear in Japan. In order to spy on and erase the fourth primogenitor, the government owned Lion organization has decided to send an attacking magician a "sword shaman" to complete the task. Yet, unknowingly, the one who was selected to spy was actually a trainee "sword shaman" girl Himeragi Yukina. (Source: Autumn Scanlations)

Manga Volume 5, Strike The Blood Wiki

Strike the Blood (season 1) - Wikipedia

Strike the Blood V The Final Anime Series Season 5 Episodes 1-4

Strike The Blood Image by Manya (Mohu Is-mine) #1453681 - Zerochan Anime Image Board

Strike the Blood, Vol. 14 (Light Novel): Golden Days, Gakuto Mikumo, 9781975332587

Kojou Akatsuki Strike the Blood Anime Girl Waifu Fanart Poster for Sale by Spacefoxart

Strike the Blood Light Novel

Strike the Blood: Append (Light Novel) Manga

Strike the Blood, Vol. 10: Bride of the Dark God by Gakuto Mikumo