Raidou was born as the
eldest son to the main family of the Mugen Tenshin Ninja Clan. He was praised
at one time for his natural talent for the arts of the Tenjinmon style of
Mugen Tenshin Ninjutsu. His father, Burai, was the 16th Master Ninja of the
clan at the time. Raidou is Ayane's
biological father, Kasumi and Hayate's
uncle, and the progenitor of the Mugen Tenshin's troubles. He raped Kasumi and
Hayate's mother, who became pregnant with Ayane. He was killed by Kasumi during
the first Dead or Alive tournament, thus deeming her the winner. Raidou's younger
from the Mugen Tenshin Village.
DOA5 storyline: Following an explosion after his defeat at the hands of
Kasumi, what was left of his body was soon found by Victor Donovan. He was
reassembled and outfitted with cybernetic parts. The process of mechanization
erased most of Raidou's memories however, leaving only his desire for power
and destruction, and most of all, revenge against Mugen Tenshin and other
ninja clan who sided with his former clan, such as Hayabusa clan.