Shrine maiden Saya Kisaragi lives a double life in a quiet lakeside town: ordinary student at Sanbara Academy by day, sword-wielding hunter of the Elder Bairns by night. Charged by her father to protect Ukishima Shrine's grounds, she cuts down these blood-drinking monsters alone until classmate Shinichirou Tokizane and Fumito Nanahara, who runs the coffee shop she stops at every morning, start pulling at the edges of her secret. This manga tie-in runs the same story as the CLAMP-scripted anime it accompanied.