C480

The moment Ling Yan's expression changed, Le Cheng had already noticed it.

"Little friend Ling Yan, what happened?"

"Un, I have a friend who is in some trouble. I need to go over now!" Ling Yan nodded his head, and without further words, he bid farewell to Le Cheng and Le Xinlan, and quickly opened the door of Le Cheng's research room and walked out