Soreyuke Marin-chan

In Japan, there are more and more men who have failed to achieve success in life. And there are fewer real representatives of the stronger sex.

Dr. Narutaki is a real genius. He knows how to change this situation. To achieve his goal, he needs sperm from 100 volunteers. But men are in no hurry to hand over their biomaterial. Then the doctor has a new idea. He kidnaps a charming schoolgirl and puts on a transparent transformer dress. This dress changes its appearance in accordance with the erotic fantasies of men. After that, the doctor gives them a short introduction.

The girl, whose name is Marin, is ready to refuse to participate in this experiment. But she will only be able to remove the dress after making all 100 men cum. However, this is not all. It turns out that the doctor has an assistant who wants to stop him. She created a sexroid called South Pole 1 for the sole purpose of humiliating the doctor and thwarting his plans. Thus, collecting sperm turns into a real competition. But what is more important-to successfully collect sperm without paying attention to the partner, or to take into account his wishes? The real competition begins.