Yuki, an honest, bright, and slightly shy female college student...She visits a frightened sex shop for an interview, but on the same day she is given a surprising practical training interview...However, she doesn't know it yet. The selling point of this store is that it is OK to allow vaginal cum shot without a rubber band...Not only is she sexually developed in order to go to the store, but she is also forced to provide creampie service by a sticky customer, and her expression becomes cloudy.