He introduced himself to others as Muramasa, the name of a famous swordsmith in Japan. Giving curses was his power. He used the name Muramasa because swords made by the swordsmith were considered a curse by people.
No one knew Muramasa's true identity in Kiss of Death. Organization members believed he was not Japanese because his accent was different. Nonetheless, they could not prove it, since Muramasa never showed his face to anyone.
Muramasa was a relatively new member compared to all members in Kiss of Death. However, he had given contributions to the organization, as his equipment made a lot of money.
Everyone acknowledged the greatness of Muramasa. He had been considered the main member and was always brought up when the organization was in big trouble. Even today, he was present at the meeting because other members forced him to come.
