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 1st Dead or Alive tournament, thus deeming her the winner. Raidou's younger
from the Mugen Tenshin Village.