The next day at seven-thirty, Lin Yue opened her eyes on time, sat up with stiff movements, and after a two-second pause, she got out of bed to wash up.

By the time she finished washing up, Hermione, Cho Chang, and Marietta had also gotten out of bed, sitting on the edge of their beds, blinking sleepily.

"Lin Yue, good morning."

Hermione turned her head and greeted Lin Yue, while Cho Chang and Marietta also nodded and wished her a good morning.

After replying to the three of them, Lin Yue reached out to support Hermione, who was walking over.

Hermione, still half-asleep, yawned and waved her hand, "I'm fine, I can stand steady on my own."

After saying that, she shook her head vigorously to fully wake herself up.

"I was actually planning to wait for you to come back last night," Hermione said, looking a bit embarrassed as she smiled at Lin Yue, "but I accidentally fell asleep."

Lin Yue shook her head expressionlessly, "Hermione shouldn't wait for me; I came back too late last night."

"Sleeping at that time is not good for Hermione's health."

Hermione sighed and murmured softly, "So you know that lack of sleep is bad for your health too..."

"What did Hermione say?" Lin Yue tilted her head, as she didn't catch what Hermione had just said.

"Nothing," Hermione smiled gently and reached out to ruffle Lin Yue's hair, "Go tidy up your things; I'll finish washing up soon, and then we can go to the hall for breakfast together."

"Okay."

Lin Yue responded in a flat tone and then turned to walk towards the desk. Hermione took a deep breath as she watched Lin Yue's back. Yes... this person has an astonishing breadth of knowledge; how could she not know that lack of sleep is bad for the body? Previously, it was just that her parents taught her that she didn't need sleep.

Pressing her lips together, Hermione followed Cho Chang and Marietta into the bathroom to wash up. After Cho Chang and Marietta finished washing up and changed their clothes, when they pulled back the bed curtain again, they saw Lin Yue, who had already packed her things and was standing straight at the dormitory door with her backpack, reading while waiting for them.

Exchanging glances, the two senior students hastily quickened their pace in packing their things. Hermione, who had just come out of the bathroom, also sped up her movements, casually combing through her fluffy hair a couple of times before slinging her backpack over her shoulder and getting ready to leave.

Lin Yue closed her book and, seeing Hermione and the others reach the door, slowly extended her hand and gently tucked a strand of hair behind Hermione's ear. "It's messy here." During the process of tucking her hair, Lin Yue's fingertips inadvertently brushed against Hermione's earlobe.

Hermione took a breath, a faint blush spreading across her face, and her earlobes slowly turned red as well.

Cho Chang clicked her tongue, secretly lamenting for her junior who still seemed emotionally distant but was actually quite warm.

At the same time, she turned back and shot a playful glare at Marietta, thinking that unlike some people, she just didn’t get it at all.

Didn’t she spend the entire summer writing a letter every day for nothing?

Marietta, who was inexplicably glared at by Cho Chang, raised her hand and scratched her cheek in confusion.

What had she done to provoke Cho Chang?

Nothing at all… As she thought this, her gaze shifted to Lin Yue, who was helping Hermione tidy her hair.

Could it be that Cho Chang was envious of Hermione for having Lin Yue to help her with her hair?

Marietta felt that she was right and reached out to symbolically help Cho Chang tidy her hair. It wasn't that she didn't want to seriously help Cho Chang with her hair; it was just that Cho Chang's hair was completely different from Hermione's. Her hair was naturally smooth and didn't need any styling at all.

As Marietta was fixing Cho Chang's hair, Cho Chang's heart suddenly started racing. Could it be that she had misunderstood this person earlier? Had this person finally woken up after being bombarded with a letter from her every day?!

Under Cho Chang's expectant gaze, Marietta blurted out a sentence. "Cho Chang, you don't need to be envious; you also have someone to help you with your hair."

"Mm-hmm!" Cho Chang nodded vigorously; her cheeks flushed with a youthful pink.

"And then? And then?" She almost couldn't wait to speak, forgetting her usual gentle and tactful demeanor. It was finally happening; there was no need to talk about being gentle and tactful now.

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"And then?"

Marietta was taken aback for a moment, swallowed hard, and looked at Lin Yue, who was still fixing Hermione's hair.

Then Lin Yue didn't help Hermione with anything else, so what was Cho Chang expecting?

Unable to think of anything, Marietta could only brace herself and continue, "From now on, I'll help you with your hair."

She watched as Cho Chang's expression gradually shifted to one of greater excitement, and thought she had found the right direction, so without thinking, she blurted out the next sentence.

"You don't need to be too excited; this is what I should do as your good best friend!"

This is what I should do as your good best friend!

What a good best friend should do!

Best friend... best friend, best friend!!! Cho Chang took a deep breath, trying hard to control herself so that she wouldn't let out a roar of anger.

She patted her chest, telling herself not to be angry, that Marietta just hadn't realized it yet, and that it would be fine once she did.

Gradually calming down, Cho Chang looked at Marietta and revealed a "kind" smile.

"Alright then, from now on, I'll leave my hair in your hands, Marietta~"

"Okay, sure..."

Sensing the change in Cho Chang's emotions just now, Marietta replied stiffly, a drop of cold sweat slowly trickling down her back.

Strange... why did she feel a sense of having survived a disaster?

Helping Hermione tidy her hair, Lin Yue led the way, with a blushing and heart-pounding Hermione, a secretly gritting-toothed Cho Chang, and a bewildered Marietta following her to the Hogwarts Great Hall.

Upon entering the Great Hall, most of the young wizards had already sat down and started eating breakfast. Lin Yue and the three of them also took their seats at the Ravenclaw table to begin their meal.

Before they had eaten for a long time, a Hufflepuff girl came running over with a letter in her hand. She glanced nervously at Hermione beside her and tentatively reached out to tap Lin Yue on the shoulder.

Then she quickly withdrew her hand. Hermione caught sight of this and couldn't help but feel a mix of amusement and exasperation; she wasn't that petty or possessive, was she?

It was just a normal greeting, and besides, Lin Yue wasn't even her partner.

Hermione felt her face flush slightly as she turned around, ready to listen to what this Hufflepuff wanted to say to Lin Yue.

Lin Yue turned around and looked at the Hufflepuff girl in front of her with a calm expression. "Good morning, Miss Morina."

"Good morning, Senior Lin Yue. You know me?" Morina pointed to herself in surprise, not expecting Lin Yue to remember her name.

"Of course," Lin Yue replied in a flat tone, nodding slightly. "You attended the study group before."

"As your temporary teacher, it is basic etiquette for me to remember all of your names."

Morina felt warmth in her heart upon hearing this. "Senior Lin Yue! You would really be a great professor!"

"Thank you, but I still have a lot to learn. May I ask why you are looking for me?"

"Yes," Morina said, biting her lip as she handed Lin Yue a letter. "Both my mom and dad work in the production of magical radios, and they received your letter yesterday."

"They mentioned you before, so they wanted me to ask if the salary and benefits you mentioned are real."

"Can you really offer such a salary and employee benefits?"

Morina looked at Lin Yue anxiously. If Senior Lin Yue was serious, then with the salary she mentioned, her family's life could at least improve significantly. Her parents could also get brand new wizard robes. Merlin knows how much it hurt her to see her parents wearing patched-up robes.

She had started saving her pocket money a long time ago to buy new robes for her parents. This morning, she received a letter from them, and when she saw the salary and benefits Lin Yue could offer, she was genuinely excited for a long time.

"Of course it's true," Lin Yue nodded without any change in expression. "It's wrong to lie, and unless absolutely necessary, I wouldn't do such a thing."

"Wow! Thank you so much, Senior Lin Yue!" Morina exclaimed excitedly, seriously nodding her head in gratitude.

After two seconds, she spoke again, looking worried. "But Senior Lin Yue, won't you really lose money doing this?"

She wanted her parents to earn a better salary, but at the same time, she didn't want her kind and gentle senior to lose money.

"I won't," Lin Yue shook her head mechanically. "According to my calculations, excluding the costs of raw materials, venue, and labor—which is the salary I pay to your parents and similar workers, I can make a net profit of one silver sickle for each magical radio."

"Compared to the one gold galleon that pure-blood families make, I might indeed be at a loss, but for a more balanced future overall, I believe making one silver sickle is the best choice."

"This is the most scientific and sustainable option among all alternatives. Please help me convey to your parents that the salary and benefits I offer are all real. I sincerely hope they can come work for me."

"Okay, Senior Lin Yue, I'll write to my parents right away!"

Morina clutched the letter in her hands, turned around, and rushed out of the hall without even having breakfast.

Lin Yue was momentarily taken aback, expressionless as she pulled out her wand and waved it at the Hufflepuff long table.

A knife transformed into a lunchbox, and several meat pies and vegetable rolls jumped into it under Lin Yue's command. She made the lunchbox fly into the arms of a nearby boy, looking blankly at him. "Please help deliver this to Miss Morina, Mr. Callis."

"Sure, Senior Lin Yue, I'll make sure it gets to her."

Callis smiled sincerely at Lin Yue and nodded vigorously.

As he turned back, Lin Yue had just picked up her knife and fork when Autumn and Hermione each pinched her cheeks from either side.

"Unmoved by such great benefits, you really are something else."

Hermione said with a smile, proudly raising an eyebrow.

Lin Yue allowed the two to pinch her cheeks, nodded, and said in a flat voice, "Hmm, as expected of me."

Then she quickly added, "But this is indeed the optimal choice, which can effectively avoid a large wealth gap and limit everyone's greed, including mine."

"Preventing a repeat of the mistakes from my original world."

"Do you really have greed?"

Marietta leaned in and poked Lin Yue's nose twice, "It feels like you don't have any at all."

Lin Yue blinked stiffly, "I really don't have any yet. I don't have desires for anything outside of learning... maybe."

"Oh, maybe," Cho Chang said slyly, looking at her, "So that means you think you might have desires for something."

"It could also be for someone," Marietta chimed in, glancing at Hermione, "Right?"

Lin Yue's expression remained unfazed as she lowered her head and focused on eating.

Hermione, who had been glanced at, turned to look at Lin Yue, bit her lip, and took a big gulp of pumpkin juice to suppress her racing heart.

It turned out that the treatment Lin Yue offered was indeed very good; almost all the workers in the magical world who received her letters accepted her job invitations.

Faced with a pile of affirmative responses, the owner of the owl post office secretly admired her, then handed the replies to the woman who came to collect the letters.

The woman smiled, gathered the mountain of letters, and walked out of the owl post office.

The warm summer breeze brushed against her cheeks, and the recently graduated Pratt senior chuckled softly.

Now, almost all the wizards in the manufacturing sector had been recruited by them.

The physical manufacturing industry in the magical world, from design and research to production and downstream sales, was already in their hands.

One could say they had the entire chain under control, and it was truly delightful to help Lin Yue junior with her work.

She couldn't wait to see what Lin Yue could do to transform the British magical world, no, it should be to transform the world.

But perhaps it would take a few more years; Pratt put on his wizard hat, as they would have to wait until Miss Granger entered the Ministry of Magic to coordinate well with them and take further steps.

Only then would it be the beginning of everything.

Back at Hogwarts, Lin Yue was sitting in the History of Magic classroom, diligently taking notes, with knowledge points being quickly written down in her notebook.

The Ravenclaws around her were mostly asleep; after all, they had Lin Yue's notes, so they could afford to nap a little.

While reviewing the knowledge points of History of Magic in her mind and recording them in her notebook, Lin Yue recalled each knowledge point along the timeline. Every time she thought of one, it was bound to be the next topic that Professor Binns would discuss.

There was not a single mistake; the entire History of Magic textbook for this academic year was already in her head.

Meanwhile, just outside her line of sight, a thin, large black dog quickly ran past outside the History of Magic classroom.