System: Building A Tech Empire

Sunshine City High School, a towering red-brick building, loomed ahead. Memories flooded back - countless hours spent hunched over textbooks, the pressure to excel gnawing at Lin Yun. 

This time, things would be different. He would still strive for excellence, fueled by determination rather than the crushing weight of expectation.

The classroom, bathed in the warm glow of the morning sun, was a far cry from the high-tech learning centers of Earth. Blackboards still dominated the wall, dusty erasers hanging beside them. The students, clad in the same uniform as Lin Yun, were a mix of eager and restless faces.

Lin Yun settled into his seat, the worn wood creaking beneath him.

"Brother Yun." 

A familiar voice rang out. Lin Yun looked up to see the newcomer. Recognition dawned - the chubby man standing before him was none other than his best friend, Pan Wei.

Lin Yun's face broke into a genuine smile as he saw Pan Wei. "Fatty! Long time no see."

Pan Wei was confused. It had been only two days since they last saw each other.

Seeing his brother, Lin Yun was flooded with memories of his past life.

After the national exam, a hygiene issue erupted at Pan Wei's family's canned food factory, causing consumer illness. The resulting lawsuits forced the factory to declare bankruptcy. 

Pan Wei, once a wealthy young master, was reduced to working construction. Back then, Lin Yun was powerless to help his friend.

"Do you have a phone?" Lin Yun inquired. Although he wasn't sure whether history would be the same, he didn't want to risk it.

"Yes," Pan Wei replied, digging a bulky mobile phone out of his bag and handing it to Lin Yun. "Who are you calling, Brother Yun?"

Lin Yun took a look at the brick-like phone.

"Yeskia?" he muttered, a slight twitch appearing on his face. It was unmistakably a Nokia 909.

Raising his head, Lin Yun spoke with a serious expression. "Listen, Fatty," he said, "I saw the news this morning about a hygiene issue at a food factory. That factory went bankrupt because of it. Why don't you call your father to check on things?"

Pan Wei's jaw dropped. "Really?" he blurted out in disbelief.

"It might be an overreaction," Lin Yun admitted, "but better safe than sorry, right? It wouldn't take long anyway."

Pan Wei's hand trembled slightly as he fumbled for his father's number in his phone. The dial tone pierced the classroom's already noisy atmosphere.

The seconds ticked by, each one stretching into an eternity. Just as Pan Wei was about to hang up, a gruff voice crackled through the receiver. "What's wrong, Son?"

Pan Wei quickly explained. "Dad, I heard some news about a food factory went bankrupted because of a hygiene issue. How about you check it out?"

"Oh? Where'd you hear this news?" Pan Wei's father, Pan Yuan, inquired.

Pan Wei subconsciously darted a glance at Lin Yun.

Lin Yun reached out and took the phone. "Hello, Uncle Pan," he greeted. "This is Lin Yun. I saw the news this morning on TV about a hygiene issue at a food factory, and I was worried it might happen to yours."

"Little Lin, I see," Pan Yuan replied, readily recognizing his son's best friend. "Thank you for bringing this to my attention. I'll look into it."

"That's a relief, Uncle Pan," Lin Yun said apologetically. "Sorry for the trouble. I shouldn't jump to conclusions next time."

Pan Yuan chuckled. "No worries at all. You were right to remind me. It's been a while since I've checked on the factory myself, and I can't be sure the employees are doing their jobs well."

Lin Yun smiled and returned the phone to Pan Wei.

After a brief conversation, Pan Wei hung up and looked at Lin Yun with a puzzled expression. "Brother Yun… You seem different somehow."

Lin Yun chuckled. "I know I've become more handsome. No need to say it."

Pan Wei rolled his eyes. "I'm overthinking."

Lin Yun smiled, his gaze sweeping across the classroom. The familiar atmosphere and faces reminded him that he had indeed journeyed back to his youth—a time when dreams were fleeting.

At this moment, the classroom door swung open. Every head turned, a collective intake of breath filling the room. Xu Qing, their homeroom teacher, stepped into the classroom.

She was a vision of effortless elegance, her long black hair cascading over her shoulders, her eyes sparkling with intelligence and warmth. Even in a simple white blouse and black skirt, she exuded an aura of sophistication that captivated the entire class, especially the boys.

"Good morning, class," she greeted them, her voice melodic and clear. A hush fell over the room as every eye remained fixed on her.

Xu Qing's gaze swept across the faces before her, lingering on Lin Yun for a moment.

Lin Yun felt a jolt of recognition, remembering the countless hours he'd spent daydreaming about her in his past life.

"I know the national exam is fast approaching," Xu Qing began, her voice carrying a gentle firmness, "and I understand the pressure you're all feeling. But remember, this exam is just one step on your journey. It doesn't define you, and it certainly doesn't dictate your future."

Her words resonated with Lin Yun. He knew firsthand the crushing weight of expectation and the fear of failure. This exam was, in fact, just the beginning of adulthood—there were more challenges to come.

"Each of you has unique talents and strengths," she continued, her eyes scanning the room, "and I have no doubt that you'll all achieve great things. Don't let fear hold you back. Embrace the challenge, give it your all, and most importantly, believe in yourselves."

A wave of determination washed over the class. Heads held a little higher, eyes shining with newfound resolve. Even Pan Wei, usually the class clown, seemed to have caught the contagious spirit.

Xu Qing flashed a radiant smile, her eyes twinkling with mischief. "And remember," she added, her voice dropping to a conspiratorial whisper, "the best way to beat the exam stress? A good night's sleep and a hearty breakfast. Trust me, your brains will thank you."

A ripple of laughter spread through the room, easing the tension. Xu Qing had a knack for lightening the mood, for reminding them that they were more than just students facing an exam.

As she continued her pep talk, memories gradually resurfaced in Lin Yun's mind.

In his past life, Xu Qing and he had been close. As a top student, Xu Qing had put a lot of effort into helping him, and with her help, Lin Yun had steadily gained admission to Tsinghua University. 

It could be said she played a significant role in his academic success.

As far as Lin Yun could remember, Xu Qing later transferred to Beijing and married a civil servant. He had never seen her again since then.

Xu Qing's voice took on a more serious tone as she addressed the class. "Now, I know many of you are focused on getting good scores for university admission, but did you know that achieving top marks in the national exam can also earn you a significant scholarship?"