C31 What Happened to the Little Girl Today?

To confirm if Miaomiao was behind this, the only way is through the exam room's surveillance footage. But how can a student like me access the surveillance room?

Qianqian clenched her hand at her side and headed toward the surveillance room, relying on her memory. No matter what, she had to give it a shot! Before that, she called the driver who was supposed to pick her up