His nephew, Ken, who was supposed to stay in Mako's younger sister, Mako's home in Tokyo. However, the big boobs are always noblemakers at home, and the fore buttocks and the spiders who are awkward from the top of the room wear are too bad. At the same time, when the patience of Ken with the aunt who put up the eruterror unconsciously was trying to surpass the limit at the time of the time... "Do you bother my boobs?" Mako, who knew that Ken was a Virgo, began to seduce Ken beyond the position of his aunt...