Takimoto, a mediocre construction worker, enjoys gazing at the mysterious beauty Rio who appears on his way to work. One day, Takimoto is frustrated with something at work and ends up tailing Rio. He follows Rio into the building where she has entered, and when he peers inside, he sees Rio engaging in lewd acts with some men... In fact, Rio is a girl with a G cup who loves pussy and will let him have sex with her as many times as he wants! #YoroP