Vampire Dormitory 4 (manga)

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?!