C65 Yan Xi's Worry

After the phone rang a few times, it became a busy tone. Yan Xi called three or four more times but still couldn't get through. In the end, she just turned off the phone.

How could he not get through... Yan Xi suddenly had an ominous premonition. Could it be that something had happened to save her?

Yan Xi tried her best to think about what happened that night. However