C472 Insidious

"In the food, in the water, in the medicine. "It's up to you."

After saying that, the young man took out an iron box and opened it. Inside was a thin, transparent glass tube. It was a transparent liquid.

"Take this with you. Do everything you can to make him take one every day." The young man handed the box to Ren Guizhi, smiled and said, "I prepared it for you a long time ago