DNA2 Complete Series (Japanese Version)Society has an overpopulation problem in the future due to the Mega-playboys. Mega-playboys have a gene, which allows them to become irresistible to women, and thus hundreds of kids are produced from hundreds of different women these mega-playboys had charmed. Agent Karin Aoi of that future was sent back to the past to change the gene of the first mega-playboy, using a special bullet. When Karin found the first mega-playboy, Junta Momonari, she shoots him - with the wrong bullet! This speeds up Junta's DNA and turns him into the mega-playboy! Now Karin has to figure out how to change this whole mess and stop it from ruining the future.