Lu Sizhe Pinned Sheng Xu to a Wall

Shi Qian woke up late the following day.

It was already noon when she woke up. She thought about it and decided to miss school.

Shang Sizhan went out. That was the best time to check on the suspicious figure she saw at school the other day.

A person was busy in the study room.

Shi Qian turned on her computer and quickly hacked into the school's surveillance system. She looked for the footage from the other day's afternoon.

She looked carefully for a long time, but there wasn't anything suspicious. 

The figure could be enormously agile and had potent detecting skills. It had sternly avoided all the cameras and hadn't caught up a straw of hair.

"What an expert," Shi Qian muttered.

She wouldn't give up, so she cut into the surveillance video of the stadium and played it in slow motion. She prudently tried to find some clues. However, the figure was too cunning, and the figure remained traceless.