Samurai : The traveler

In the middle of the battlefield a samurai fell not by the blade of his enemy but by his own, so he wakes up in a dark room where a voice hired him to kill evil beings for other worlds in exchange for reversing all the chaos and destruction he did.   This samurai what are his secrets?   Is the 'Voice' manipulating him? These and more mysteries are about to come...embark on this adventure for worlds!