26-year-old Mio Akemi is a beautiful, talented woman who always wears a poker face in the office. She's finally got a boyfriend, Atsuhiro, who she's been seeing for three months... and she still finds him absolutely adorable!!!! Everything Atsuhiro says and does makes Mio's heart flutter. So much so, she's not sure she'll be able to survive even a normal date. Though their relationship isn't progressing due to Mio's excessive adoration for him, she still experiences romantic bliss. Then one day, Atsuhiro's sick, so Mio goes over to his place to care for him. But, her usually kind and sweet boyfriend suddenly acts uncharacteristically rough and demanding...!! Could it be that Atsuhiro's actually a... werewolf? Mio is from a family that has been the sworn enemy of the werewolf clan for hundreds of years! This is the start to their wild and unpredictable relationship...!