C1619 Brothers

"What do you mean?" Zhang Tianwang frowned, "Father lied to me?"

"Yes." Zhang Tianyang said, "You have to know, any medicine that Dad himself has never used or doesn't use, he definitely can't use. He's been researching all kinds of medicine to make himself immortal, and he's also maintaining a strong body, but he's never given us these medicine, not even giving us the prescription