Shinohara Erika (voiced by Ito Kanae) looks innocent and cute on the surface, but in fact, she is a "wolf girl" who lies to satisfy her vanity. In order to convince her friends that she has a super handsome boyfriend who does not exist, Erika actually went to the street to "sneak photos", and the man in the photo she took, Sada Kyoya (voiced by Sakurai Takahiro), turned out to be Erika's schoolmate. At this point, Erika's good luck seems to be running out. In order to prevent her lies from being exposed, Erika can only ask Sada to pretend to be her boyfriend. What Erika didn't expect was that Sada, who seemed serious and serious, was actually a black-bellied "Shake S". Coincidentally, Erika also had the characteristics of "Shake M" in her heart. The two men and women who were inconsistent in appearance and reality hit it off and staged absurd but sweet love comedies.