Knock, knock, knock~
Hearing the knock on the office door, Sun Chuanrong reluctantly put down his teacup and shouted, "Come in, the door's not locked."
A young nurse rushed in, holding a piece of white paper in her hand. From a distance, Sun Chuanrong could see two lines of small characters written in calligraphy on that piece of paper.
"Wu, why are you so flustered? What's that in your hand?" Sun Chuanrong asked curiously. Usually, Wu was a steady person, not even panicking during her first surgery. So why was she flustered now?
"Dean, someone outside asked me to give this to you." Wu placed the paper on Sun Chuanrong's desk and, after taking a breath, said, "I accidentally caught a glance just now, and it seems to be a challenge letter."
"A challenge letter?"
