Thread:Netherith/@comment-1444687-20131209050018

I found this out during a trip through the official Japanese version of DOA's Wikipedia page.

Originally Raidou was supposed to lead Hajinmon, and not Genra. But when Raidou went bat shit crazy and raped Ayame, the clan masters kicked him out, and placed Genra in charge of the clan, as he was the second most powerful of the Hajin sect at the time.

Genra's Corruption and Betrayal

While Ayane was chasing Kasumi to the DOA tournament, DOATEC's Super Human Development Project Group made contact with Genra. They kidnapped Genra, and used him as a human test subject for the Omega Project. After gaining his newly enhanced powers, Genra sold out the clan giving them the exact location of the clan's  village and true heir; Hayate. Once Kasumi Alpha was completed, they sent her there to capture Hayate, hence the start of Project Epsilon. 