C619 No One Could Solve It.

"Don't think of me as a fool. Your medicine won't last forever. If I'm not wrong, the medicine will lose its effect at a certain point in time. Isn't that right?"

"Very good. I like dealing with smart people like you. To tell you the truth, you are right. They can only take the medicine once at most, and it can still suppress the effects. However, the effect will be short-lived