The Great Sexual Beast: The Greatest Climax on the Hill of Shame.

There is a researcher somewhere who is trying to convert sexual energy into sustainable, clean energy. Satomi, an unsuccessful writer, visits the laboratory to cover the research, but finds that a problem has arisen there. Sex energy is leaking from the laboratory in the mountains and attaching itself to insects. The energy is then absorbed by the insects into the bodies of humans, creating sex-hungry monsters. Satomi decides to cooperate with the researcher in order to save people, but...