During the day, Ririka, who works as an ordinary office lady, heads to the apartment where the man lives with a cool face from the office. However, her mind is already filled with fantasies of sucking her owner's dick to her heart's content. Her body is throbbing, but she can't help it. When she arrives at the apartment, she is given dog ears and a collar, and from then on she is trained in a lewd manner, becoming a dog that does not speak any human words. Then, when she finally gets to stuff the dick she has been waiting for into her mouth...she is so overwhelmed with emotion that she wets herself...