I was kicked out of the house, and I was reborn and became the emperor

In the previous life, Fang Yi, the fake prince of the Hou Mansion, was tortured to death by the real prince who had just been found. Now he is reborn and leaves the house with nothing. He will never have anything to do with the Fang family again. At this time, the alien tribes on the grassland invaded. He joined the army, killed the enemy, and got promoted to a higher position. Until Fang Yi sat in a high position, looking at the real prince kneeling on the ground and trembling. "What if it's true? What if it's fake?"...