Gu Yusheng, who could hear paper being flipped through on the other end of the call, knew what Qin Zhi'ai was doing but did not make a sound to disrupt her. It was only when she called his name that he said "hmm" gently to let her know that he was still there.
Qin Zhi'ai turned her head again, after staring at the letter that she had laid out in front of her. It was only then that she vocalized the doubt in her heart. She asked, "Yusheng, are you… Mr. S?"
"Hm." Gu Yusheng exhaled smoke into the mouthpiece, which muffled his subsequent "yes," but it did not go unheard.
It was not that Qin Zhi'ai had never been curious about Mr. S's identity, but she had never imagined that the person she had been corresponding with for eight years would be Gu Yusheng, the person whom she had loved and desired for so many years.