C73 The Mysterious Girl!

"Fourth Sister, how did you know?" Zhang Chen asked, his voice tinged with bewilderment. The door had been closed the whole time; how could Lau Qingyue have seen anything?

With a beaming smile, Lau Qingyue teased, "Stinky brat, do you think you might be underestimating me a bit?"

Zhang Chen was taken aback. A luxurious mansion in the heart of the city, extraordinary medical skills..