Kyuta might be Hina’s best friend, but her real focus will always be Mao. Right? So why does she feel so weird when a cute girl asks Kyuta out? And Kyuta just thinks of Hina as the annoying otaku next door—it’s none of his business what she does in her personal life. So why does he want to throttle his buddy when he starts hitting on her? With their thoughts in such turmoil, how will the two of them manage when they stumble face-first into some mysterious vampire business?!