The Scum Is Lost 

"How about you calm down for now?" Cheng Sheng asked and heaved a sigh when he saw Xi He's lost expression. 

Xi He nodded and took deep breaths. 

"Look, for demons, one of their basic characteristics is their rapid growth." Cheng Sheng spoke as he took out an umbrella, enlarged it, and then pulled Xi He and Fei Yin on it before they flew away. "But, you are half a demon. When you were born, the blood of a human and a demon were fighting against each other in your body, and the blood of the demon won, so, even if you were born five years ago, you grew up fast, and now, five years later, is sixteen years old." He explained.