I Hunted Fake People, but I Hid a Fake Sister

In the era of global crystallization, humans transformed themselves into semi-crystalline beings in order to survive. There is only one existence that still maintains a complete human appearance. They are called - Pseudo-humans. Shen Ye is the sharpest hunter in the Alien Management Bureau. He has awakened the forbidden ability [Black Box], which can swallow supernatural powers and analyze disguises. His mission is to find the fake person hidden in the crowd. But no one knows. His sister Shen Nan, whom he has protected for eighteen years, is a fake. Three years ago, he watched his real sister die with his own eyes. For three years, he hunted the golems while guarding the monster that replaced his sister. Until the Alien Administration discovered her existence. All called for her execution. But Shen Ye stood in front of her. "I know better than anyone whether she is a monster or not." "But she called me brother of eighteen years." The biggest lie in the world is not a fake person pretending to be a human being. But - human beings have long forgotten what a real person is.