C100 Who Was on the Other Side of the Phone?

I couldn't hear the other side of the phone. I didn't know if the other side of the phone was male or female. I could only hear Yang Xinyi's voice.

On this phone call, Yang Xinyi displayed a kind of joy and liveliness that had never appeared before. It was completely different from when she faced me, or even other people in the family.

The giggling sound was originally quite pleasant, but now