You Kicked Me Out of the Marquis's Estate, and Now That I'm Emperor, You Want Me Back?

In his previous life, Fang Yi was the marquis household’s fake heir. After the real heir was found, he was tortured to death. Now reborn, he walks away with nothing from the very start. He’ll never have anything to do with the Fang family again. At this time, foreign tribes from the grasslands are invading. He enlists in the army, kills the enemy, and rises through the ranks, higher and higher. At last, Fang Yi sits in a position of power, gazing at the real heir trembling on his knees. “So what if I’m the real one? So what if I’m the fake?”