The master known as Black Hand Master did not originally call himself Black Hand.
On the day he abandoned his old name and became a Hero, the master took the name "Bright Flame" for himself, and adopted his mother's surname, thus he was called ND Bright Flame. In addition, when he was young, he tried to give himself resounding titles such as "Heavenly Punishment Gun" and "Heavenly Punishment Spear," but they didn't catch on.
