C338 Su Nan Is Your Son?

Su Nan is your son?

So that man's name was Su Rongkai!

"You're here. It's not easy to find you." the man said faintly.

"I've been studying the antidote all these years. It should be done soon."

"There has been no news of you all these years. I asked everyone to look for you, but there was no news. How do you expect me to trust you?"

"All these years, I've been searching for formulas outside