Professor Haruhiko Yamagishi is the creator of the cambrian virus and plans to turn all human beings into cambrians. Due to a side effect of the virus he regains his youthful appearance despite being 50 years old.
~!Later on he gains the body of a seductive dominatrix.  !~

Dr. Yamagishi was expelled from an academic society because he had tried to make a human clone. Next theme of his study was a new human species Cambrian. He made himself a test target. However, he turned into a chunk of grotesque flesh, and it began to rape women by its tentacles. 

Keiko Kurakake is a scientist in the Shibasato research institute. One day she gets a call from Professor Yamazashi, who tried to preform human cloning a year ago. She accepts his invitation and goes to meet him. When she arrives she is shocked to see that the professor is now a young man, the secret to his new youth is due to the Cambrian factor. Professor Yamazashi aims to recreate the unprecedented leap in evolution called the Cambrian explosion with modern humanity, hoping to rule the world as their creator!

