Anime Sex Tube - Marine A Go-Go Episode 2

Based on the manga by Komiya Sanae and Nonomura Hideki. Dr. Narutaki, a genius who is attempting to preserve authentic Japanese males as opposed to the losers they have become in the modern era, requires sperm from 100 specimens. The issue is that these 100 specimens will not offer it to him voluntarily, so he devises a scheme. He seduces Marin, a seductive girl from an all-girls school, and forces her to wear a special costume that converts her into a man's desire and will not come off until she obtains all 100 semen samples. Southpole One, a sexaroid made by the doctor's assistant, is meddling by depleting and stealing the men's sperm first, effectively turning the situation into a race. "For the bright future of Japan, I shall take your semen!"