Conqueror ( Orc God series)

Growing up Fenrel was taught by the clan that humans hated orcs, and that they had to be avoided at all costs. He found out the truth of those words when they invaded. Enslaved, tortured, made to fight for their amusement. He finally manages to escape, and gain back his freedom. But it's not enough. Not when humans still enslave and kill his kind for their own amusement. So he decides that he will fight back, and retake his clan's lands. And show them that even a former orc slave can become a Conqueror. Warning: foul language, sex, and adult themes rampant throughout this book.