"Can I finally mark you as mine?" A swoon-worthy school romance overflowing with love from a handsome vampire! Miku, an ordinary girl living a normal life, has a childhood friend named Hikaru—who just happens to be super handsome. He’s also a member of "COLORS," a group of four popular boys at school. Miku always admired them from afar… until she discovers their shocking secret—they’re all vampires!?