C35 Express box

After Song Guo returned home, she received a call from Song Rongguo. Just as she was hesitating whether she should answer the phone, the call was suddenly cut off. A sliver of doubt flashed across her eyes, but she quickly forgot about it.

After about 10 minutes, Song Guo's phone on the table vibrated at a high frequency.

Song Guo finally put down her book and stood up to pick up the phone