After Yun Lintian left, Xing Yongnian walked into the garden and bowed respectfully toward Xing Tengfei.
He raised his head and asked in doubt. "Why did you let him go, father?"
Xing Tengfei took a sip of tea and glanced at his son. "I didn't let him go, but I had no ability to hold him back."
A look of shock appeared on Xing Yongnian's face as he said in disbelief. "His strength… has already reached that high?"
"His strength cannot be measured with commonsense from the beginning… If we fight head-on, I don't think anyone in this world can be his opponent." Xing Tengfei said calmly.
"Moreover, he had obviously noticed the formation here but still came without fear. Do you know what this means?"
Xing Yongnian's face turned solemn as he replied. "But our Star Annihilation Formation is not weak either. Was he truly not afraid?"