Mr. An's reaction was surprisingly swift, something that made Gu Changsheng a bit astonished.
Even such a statement hadn't managed to trick him into revealing himself, as a normal person would subconsciously blurt out, "How did you know?"
But even though he hadn't been tricked, the panic flashing in his eyes was hard to conceal.
Gu Changsheng still smiled, his smile brilliant, yet it seemed to bewitch and seize souls, squeezing Mr. An's Achilles' heel with a single phrase.
And Mr. An had been scrutinizing him all along.
Inside, he was faced with a storm of shock—
'Impossible, absolutely impossible.'
'How could the effects of Mr. Mo's medicine be seen through by an ordinary person?'
'Li Tai? The once famous Li Tai in Capital City, does he truly possess such strength? Did I underestimate him?'