KANZAKI MASAOMI

When forcibly injected with the DNA of Musashi - the legendary swordsman--by the "Akai Umi" (Red Sea) secret organization, Hagane Yakushimaru becomes a master fencer with supernatural powers. She sets off to rescue her parents who have been abducted

A dramatic story set in contemporary Japan, about a guy with amnesia, who finds out he was turned into a super-cyborg in a corporate weapon research program. He goes on a mission of revenge. A little shallow, perhaps, but a good example of shounen SF