C103 System?

"Why are you up so early? Why didn't you sleep a little longer? " Her thin lips parted slightly, and her deep eyes faintly revealed displeasure. She felt even more heartache.

"I was woken up by your phone." Gu Chuchu yawned and pointed at his phone, "Look, the phone is calling again."

Tang Cheng picked up the phone and was about to turn it off to let Gu Chuchu sleep