Tenma Ganzo is the leader of a group of bandits whose senshi killed Mikan's parents. After two of Touka Kurenai's workers were rescued by Rushuna from his men, he tracks Rushuna down to the Peach Blossom Tower and tries to destroy it with the aid of Banmaru Zoushi. After Rushuna defeats him and Mikan spares his life, he joins Touka, helping rebuild the Peach Blossom Tower.

source: wikipedia