I'll do it! I'll become your thrall!" A crossdressing girl and an obsessive vampire find themselves entangled in a dangerous relationship. A heart-pounding BL-esque romance drama from the award-winning Ema Toyama (Missions of Love, Aoba-kun's Confessions)!Mito, who has no family to rely on, lives on the streets, disguised as a boy. Ruka, a vampire, saves her from a perilous situation and makes her an offer: become his subservient thrall from which he can feed whenever he wants, and she can live with him—in the boys' dorm. Because her very existence depends on her secret not being found out, every day is a new danger—to say nothing of that vampire! Meanwhile, Ruka, not knowing Mito's a girl, dotes on her night and day in an attempt to ripen her "disgusting male blood," but when real feelings develop … this dangerous romance between a crossdressing girl and an obsessive vampire begins!"
Now that Mito and Ruka each know how the other feels, their romance goes into overdrive as Ruka pops the question! However, Major Ruzé of the Patriots, a militia attempting to seize control of the Land of the Vampires, seeks to steal Mito away and separate Ruka from his destined partner! What's more, it seems Ruka and Ruzé have some kind of connection… With explosive new twists, the dangerous romance between a crossdressing girl and an obsessive vampire rises to a new climax!