C78 I Can't Guess

Could this person be Lee Muran? Or perhaps, Lee Muran already knew who this person was?

She looked seriously at Lee Muran, who leaned back on the sofa. With one hand holding the wine cup, he shook it gently and gulped it down.

"Did you know that from the beginning?" Hsing Rushi asked seriously.

Lee Muran lowered his eyes and put down his wine cup without replying to her question