Tenchu: Stealth Assassins hack: Tenchu 4 true ending part 3 (plot summary in description)

As Onikage predicted, Rikimaru he killed was not even the real one. Master shinobi just wanted to get rid of his adversary in style. But Onikage was way too smart, to be fooled by such childish tricks. And now he got a fine sword for himself! After some investigation, he got the info about certain masked man, who was trading womans in slavery, that was found in the former Echigoiya estate. Also he had ronins in very bad working conditions & low fee. So without any delay, Oni rushed to help those people And so the world sees a born of a new hero....ONIKAGE?! Some links realted to Tenchu communities