Vampire Dormitory manga volume 1 features story and art by Ema Toyama.

Mito has no family to rely on. She lives on the streets, disguised as a boy. Ruka is an otaku vampire interested only in 2D girls. After Ruka saves Mito from a perilous situation, he makes her an offer: “Become my subservient thrall and let me drink your blood whenever I wish! In return, you can live with me—in the boys’ dorm!” But to stay with him, Mito must hide the fact that she’s a girl. Every day is a new danger—to say nothing of that bloodthirsty vampire!

Vampire Dormitory manga volume 2 features story and art by Ema Toyama.

After a life of loneliness, the crossdressing Mito has finally found a place where she belongs—living in a boys’ dorm as a vampire’s thrall! Ruka doesn’t know she’s a girl, yet he showers her with love in order to sweeten her blood. But just as Mito thinks she’s found happiness, she finds out that every vampire has a “fated partner”…and that Ruka is only using her as a temporary substitute. Meanwhile, Mito ends up in close quarters with the mysterious Ren, who has vowed to protect her from being turned into a vampire. Why does he care so much? Could he be falling for her…?

Vampire Dormitory manga volume 3 features story and art by Ema Toyama.

Just after the secretly crossdressing Mito finally realizes that she has feelings for her vampire roommate Ruka, the two of them have a fight and she ends up spending the night in Ren’s room. But will Ren, the half-vampire, be able to hold back his growing desires now that the two of them are in such close quarters? And now that Mito has grown distant, what will Ruka do when a beautiful girl, Maina, asks him out? His decision could unknowingly break Mito’s heart…

Vampire Dormitory manga volume 4 features story and art by Ema Toyama.

Ren has discovered that Mito is actually a girl! He swears to keep her secret, but asks her to go out with him in exhcange! Meanwhile, Ruka has been whisked away to the Land of Vampires to explain why, instead of searching for his "destined partner" as he is supposed to, he has been living with a boy (Mito). Ruka has no intention of doing as he is told, but will he change his mind when a fortune-teller reveals that he will meet his destined partner that very night?!