Kirie Ukita is a beautiful university student whose good looks captivate everyone, but he avoids interacting with others due to the trauma of a past relationship.
For Kirie, Yukimura, a sociable and well-liked coworker at his part-time job, is someone who stimulates his insecurities.
One night, as Kirie passes by a park, he witnesses Yukimura being assaulted by a male junior colleague.
Kirie instinctively calls for help and runs from the scene, but in his lower body he feels a lingering sexual arousal that he has never felt before...