A 22-year-old family restaurant clerk, Sinon, who makes a living out of boredom with her boyfriend, who does a simple job of just giving creampie, Sinon Nanase
Sinon usually works part-time at a family restaurant. She is also an employee. Her parents are relieved and she has a boyfriend who they have vowed to marry, but it seems that sex is the only thing she enjoys, but she has no sex with her boyfriend. She used to do it all the time, but now she feels lucky if she can satisfy her sexual desire through P-activity and earn extra money through creampie.