A Scientist studying evolution turns himself into a new breed of human and begins spreading his genes through the scientific population.
Expelled from the academic world for illegal experiments in human cloning, Professor Yamagishi turns his attention to the study of explosive leaps in evolution. Instead, he only manages to turn himself into a gruesome lump of flesh with lots of tentacles, and is soon penetrating every available orifice on hapless bystander Keiko, hoping to impregnate her with the seed of a new breed. Based on what was presumably an erotic novel by Noboru Mitsuyama in the time-honored tradition of Advancer Tina. The name comes from the period 590 million years ago, when life first arose on Earth. LNV
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