"What's wrong?" Ji Yanchen turned his head to look at the girl.

Shi Miao unbuckled her seatbelt, opened the car door, and said succinctly, "The USB drive was stolen."

Upon hearing this, a hint of surprise flashed in Ji Yanchen's deep eyes. "I'll go with you."

"Okay." Shi Miao nodded and got out of the car briskly.

Meanwhile, at Tsinghua University's security office.

The small security room was packed with people; not only had Li Wenlin arrived, but even the school leaders had been alerted.

Shen Yan scratched his head in frustration, his brows furrowed with guilt, and his eyes were bloodshot with anxiety. "After Shi Miao gave me the USB drive, I put it on my desk. When I came back from the restroom, I was just about to study her work when I found that the USB drive was gone. I searched the drawers and under the desk several times, I practically turned the whole office upside down!"

He covered his head and continued, "I even asked other teachers to help me look, but we just couldn't find it! No matter how hard we looked, we couldn't find it. It's like the USB drive grew wings and flew away."

Li Wenlin was much calmer than Shen Yan, who was in a panic. After all, as the president of Tsinghua University, he had seen all sorts of storms.

Even though it was his first time encountering something like a stolen USB drive, he remained remarkably calm. He patted Shen Yan on the shoulder and said, "Don't panic. Let's review the security footage first. You should also think carefully about who else entered or left the office at the time."

Upon hearing this, Shen Yan gradually calmed down, rubbing his head. Suddenly, a thought flashed through his mind, and he remembered something. "Shi Miao left around 2:30. Right after she left, a few students from the department came into the office... I called them to help move the books... By the time I came back, they had already finished moving and left... Then I received a phone call..."

Li Wenlin's eyes flickered slightly, and he immediately grasped the key point. Before he could finish speaking, he asked first, "You said that as soon as Shi Miao left, students came into the office and moved things?"

Shen Yan wasn't stupid. Hearing what he said, he realized something was wrong. He scratched his head and hesitated, "Principal, do you suspect that the person who stole the USB drive is among those students who were moving books?"

Li Wenlin remained silent, his expression somewhat somber, and instructed the security guard sitting in front of the monitor: "Pull up the surveillance footage from 2:30 PM."

"Okay, Principal." The security guard nodded and quickly started operating the computer, pulling up the surveillance footage for the time period that Li Wenlin mentioned.

Looking at the students entering the office on the surveillance footage, Li Wenlin pointed at them and said in a deep voice, "Professor Chen, take a look and see if there are any suspicious people among these students."

Shen Yan frowned, intently watching the footage on the monitor. Suddenly realizing something was wrong, he called out, "Stop here!"

Upon hearing this, the security guard immediately paused the broadcast.

Shen Yan looked at the girl on the surveillance screen and said with certainty, "She wasn't among the people I called for help!"

Li Wenlin frowned. He recognized the girl on the monitor; it was Su Wenxue.

He was the one who issued the punishment for her before.

It can now be basically determined that she is the prime suspect.

At this moment, Shi Miao and Ji Yanchen walked in.

"Principal Li, Professor Shen."

"Shi Miao, you're here." Li Wenlin nodded and greeted the man next to the girl, "Young Master Ji."

Ji Yanchen nodded. "Principal Li, how's the surveillance footage coming along?"

Li Wenlin pointed to the paused surveillance footage, "She's the prime suspect."

Shen Yan, who was standing nearby, added, "She wasn't among the people I called to help move the books."

Ji Yanchen glanced at the monitor, then turned to look at the girl beside him and whispered, "Do you know her?"

Shi Miao's delicate and striking face showed little emotion. She had already guessed that it was Su Wenxue, and said in a calm tone, "Yes, my former roommate."

Shen Yan put away his phone and looked up at everyone. "I just asked the student who didn't come, and she said that Su Wenxue offered to help her move the books. We need to find Su Wenxue quickly; maybe we can get the USB drive back!"

...

In the dormitory.

Su Wenxue was unaware that the school had already traced her to someone else.

"Wenxue, you're in the dorm?" Her roommate pushed open the door, somewhat surprised, as Su Wenxue usually went out to date her boyfriend at this time.

She put down her book and sat down in her chair. "You know what? I heard from my friend that something seems to have gone missing from your computer science department. Even the principal and other leaders have been alerted and are checking the security footage. We don't know what valuable item it is."

"Are you serious?" Su Wenxue's pupils suddenly contracted. In surprise, she subconsciously stood up and knocked the chair away, making a screeching sound.

Her roommate frowned, not understanding why she was so agitated, but not thinking about anything else, and continued, "Yeah, I don't know what the thief was thinking. There are surveillance cameras everywhere in the school, they can easily find out who stole it by checking."

Su Wenxue's face turned deathly pale, her mind was buzzing, and she was extremely flustered.

"Wenxue, are you alright? You look so pale."

"It's nothing, my stomach just suddenly hurts a little." Su Wenxue lowered her head guiltily, picked up her phone, and went into the bathroom, locking the door behind her.

She leaned against the door, her legs feeling weak, and her fingers trembled as she pulled the damaged USB drive from her pocket.

The next second, Su Wenxue threw the USB drive in her hand into the toilet.

Watching the USB drive being swept away by the water, she breathed a slight sigh of relief. As long as the USB drive couldn't be found, they wouldn't have any evidence to say that she stole it.

She just needs to deny it to the end; she wasn't the only one moving the books.

......

In the principal's office.

Li Wenlin glanced at the message sent by Shen Yan, rubbed his temples with a headache, looked up at the two people sitting on the sofa, and said in a deep voice, "Shen Yan said he couldn't find the USB drive at Su Wenxue's place, so she probably destroyed it a long time ago."

Ji Yanchen's eyes gleamed with a slightly cold light, his slender fingers slightly bent as he gently tapped on the armrest of the sofa. "Bring the person over first."

“Okay.” Li Wenlin nodded, then picked up his phone and sent a message to Shen Yan.

Shi Miao leaned casually against the sofa, her face expressionless, as if she had expected this outcome.

She lowered her eyelids, looked at the message a flower had sent her on her phone, and said rather casually, "Found something interesting."

Ji Yanchen raised an eyebrow. "What?"

Shi Miao looked at him with her dark eyes, her deep gaze shimmering. "Do you know Li Zheyuan?"

Ji Yanchen frowned almost imperceptibly, clearly hearing this name for the first time. "Is he involved in stealing the USB drive?"

Shi Miao hummed in agreement. She asked Yiduohua to check Su Wenxue's WeChat chat history and unexpectedly found something: "Su Wenxue sent him a picture, which is my USB drive, but it has been damaged."