DNA²

Mangaka: Katsura Masakazu
Genre: shounen, romantic comedy, sci-fi

Synopsis: Karin Aoi, a DNA operator, is sent from the future to alter the genetic sequence of one Momonari Junta who has the "Mega-Playboy" gene. Because of this gene, he has sired hundreds of children, and his children have sired hundreds more, and their children, and so on, thus causing a serious overpopulation problem. But when Karin sees Junta, she meets a pathetic man who's allergic to women -- he faints and throws up whenever women get too close. How can this loser be the rumored playboy?

Comments: Junta looks like someone who came from Dragon Ball Z -- big hair, super powers, and all. The fight scenes may also seem Dragon Ball-ish. The manga is mostly geared towards prepubescent boys but it does have its funny moments that the rest of us can appreciate, too. DNA² also has an anime version but it has been licensed by some company so I doubt if you can still find copies lying around the internet.

Scanlator: Manga Project