Toshie is asked to drive away some bad black guys who have taken up residence in an empty building, so she goes into the building to try to persuade them. However, instead of listening to their story, the black guys force Toshie into sucking their big dicks, take her to another floor, and rape her with four guys who cum inside her! As she wanders the building, being tormented by the black guys, Toshie realizes how she can understand them. Determined, she heads into the depths of the darkness...