C350 The Strange Poison

Seeing Yang Ying's expression, Manager Yun glanced at Elder Lee and began to explain.

"Years ago, Lao Lee's grandson was caught off guard during a battle, and was injured by the enemy. Over the years, his cultivation level has been declining, and Lao Lee has no other choice but to use pills to keep him alive.

"Just yesterday, his grandson's cultivation suddenly became unstable