I've already become a Hogwarts professor, and the system only just appeared.

Su Yu also put away the magic oscillator in his hand and teased Snape, "Oh, it seems Slytherin lost!"

Snape quickly wiped the smile from his lips and said coldly and arrogantly, "He's just a brat who's suspected of drinking Felix Felicis. I'll file a complaint and have him tested for drugs!"

Su Yu rolled her eyes: "Would it kill you to praise Potter?"

"Yes!" Snape said without a doubt, then flicked his cloak and left with a flourish.

"Professor Snape is still so... eccentric!" Tonks shrank back and said timidly.

"He's just being stubborn. Let's go, we should be going too. We still need to go to Hogsmeade to finalize the deal with Herd." Su Yu pulled Tonks up, ready to leave together.

Suddenly, he noticed someone hiding under the stands, someone he recognized: "Hermione? What are you doing here?"

Hermione was there to stop Snape from casting a spell. Just now, on the opposite side of the stands, Hermione saw Snape chanting something to Harry and assumed he was going to harm him.

She rushed over, ready to set Snape's robes on fire, but before she could even begin, Su Yu had already taken care of everything, leaving her somewhat stunned.

Hermione originally thought that since no one would see her, she could just hide here and leave after everyone had left. But things didn't go as planned, and Su Yu still managed to see her.

Having no other choice, Hermione crawled out from under the stands and stammered, "Professor, if I said I came here specifically to see you, would you believe me?"

"I believe you, so what do you need me for?" Su Yu continued to ask.

Hermione, on a sudden inspiration, asked the same question again: "Professor Sue, Senior Farley asked me to ask you, is this Miss Tonks really not your girlfriend?"

"I'm sorry, Ms. Hermione Granger, I must apologize. I lied last time. I am Sue's girlfriend!"

Before Su Yu could answer, Tonks spoke first, but this time her answer was completely different from the last.

As she spoke, Tonks looked at Su Yu. Their eyes met, and Su Yu could feel the determination in Tonks' eyes. Their hands were clasped tightly together.

"Okay, Professor Sue, and Sister Tonks, I wish you happiness!" Hermione felt this was a sweet surprise, gave a bright smile, and then skipped away.

She was going to tell this news to every little witch she knew, and she would share the melon she had with others, thus reaping double the joy.

In a private room at the Hogshead Bar in Hogsmeade Village, Hurd had been waiting for over an hour. Su Yu had clearly said noon, so why hadn't he arrived yet?

He involuntarily got up and paced back and forth, lowering his expectations for the price slightly.

Finally, the door creaked open and Su Yu walked in, saying, "I'm sorry, Mr. Hede, something came up at the school and I'm late. I'm really sorry."

Although he said he was sorry, Su Yu's expression showed no remorse whatsoever. He simply pulled Tonks down and sat down casually.

On the contrary, Herd forced a smile and said, "It's alright, Professor Su. Of course, school matters are more important. I'm quite comfortable having a drink here by myself."

Su Yu didn't waste any words and went straight to the point: "My Auror friend has already done an assessment for me. She thinks the problems with this property can be resolved, but the cost might be quite high, so..."

Su Yu didn't continue, but Herd already understood that he was trying to lower the price. Fortunately, he was prepared and said with a troubled expression, "Professor Su, 200 Galleons is already very cheap. Even the most remote residences in Hogsmeade cost more than that."

Su Yu said, "To be honest, my main goal is to open a factory. Whether it's a shop or not doesn't really matter. If all else fails, I can just buy a house. That would be even less risky."

"No, no, Professor Su, whatever your factory produces, it will definitely be sold. Having a storefront will only bring benefits. How about this, I'll lower the price by another 10 gold coins." As he said this, Hed's heart was bleeding.

Su Yu shook his head: "No, no, if the problem can't be solved, this property will be stuck in my hands. The risk is too high."

"Then how much do you want?" Herd's face looked worse than if he were crying.

"150 Galleons!" Su Yu quoted a price.

"Impossible, absolutely impossible!" Hurd was going crazy. He bought this property for 150 gold gallons per square meter back then. Thirty years have passed, and he hasn't made a single penny?

After a fierce negotiation, the price was finally set at 185 Galleons per square meter. Su Yu paid a total of about 2 Galleons to finally obtain the land deed for the property.

"So, are we going to take care of that problem today?" Tonks asked as they left the Pighead Bar.

Su Yu shook his head: "No need. Your magic power hasn't recovered yet, so you shouldn't get involved in this kind of thing. Our factory manager will be arriving tomorrow, and we can test his skills then."

On Sunday, Su Yu left Tonks at school and went to Hogsmeade Village alone. The place he had arranged to meet Remus Lupin was the newly purchased shop.

When Su Yu arrived, Lu Ping was already waiting for him at the shop entrance. Compared to when he was in school, Lu Ping was clearly much more down on his luck.

He was carrying an old suitcase, wearing a suit that had been washed until it was a little faded, and his hair, though clearly styled, still looked somewhat messy.

He looked rather thin, with sunken eyes and some minor scars on his face from healing. He appeared somewhat uneasy when he saw Su Yu from afar.

Thinking about it carefully, the four members of the raider squad assembled by James Potter really had it all.

Lupin, needless to say, is a werewolf, and being despised and ostracized by wizards is a common social phenomenon.

Besides Lupin, Sirius was imprisoned in Azkaban, where he endured loneliness and threats from Dementors every day.

Peter Pettigrew, on the other hand, transformed into a mouse and hid in the Weasley's house for over a decade. If it had gone on any longer, he might have forgotten that he was a human.

Finally, there's James Potter, who died directly at Voldemort's hands. As a famous Chinese online novel goes, "Thirty years east of the river, thirty years west of the river," and so it goes...

“Remus, it’s been such a long time. Let me think, it’s been at least 13 years. It’s so good to see you.” Su Yu spoke first, breaking the subtle awkwardness between the two.

Seeing Su Yu's attitude, Lu Ping felt relieved. After all, the relationship between the two back in school wasn't exactly pleasant.

“Indeed, we haven’t seen each other much since graduating from school, but I used your Scout Guard when I was with the Order of the Phoenix, and it was a fantastic product,” Lupin praised sincerely.

"Does Sirius think so too?" Su Yu blinked and teased.

Lupin was taken aback, then gave a bitter smile: "Although he wouldn't admit it, he studied that thing for a long time, but later he... betrayed us."

"Betrayal? What happened?" Su Yu asked as he opened the door.

The two walked into the shop together, and Lupin said, "We used the Faithful Charm to protect Lily and Harry, and Sirius was the Secret Keeper."

"But he... betrayed James, revealed their hiding place to the mysterious man, and even killed Peter..."

"Are you kidding me? The Sirius I know is definitely not that kind of person," Su Yu said. Whether it was his memory of the plot or his experience of being both enemies and friends with Sirius, he believed it was impossible.

“I don’t believe it either, but it’s the truth, and Dumbledore acknowledges it.” Lupin’s eyes were somewhat dejected.

Su Yu shook his head and said, "Dumbledore is not a god. Just because he approves of something doesn't mean it's correct. Were you there at the time?"

Lupin shook his head: "I wasn't there, but when I left, James did choose Sirius to be the Secret Agent."

"Is it possible that they changed the secret agent after you left, like Peter Pettigrew? Did you see Peter's body?" Su Yu continued to ask.

Lupin fell into recollection and said, "No, but..."

Su Yu ignored his "but" and simply said, "Is it possible that the self-righteous Mr. Potter replaced the Secret Keeper with that shifty-eyed fat guy, and that he just happened to want to side with Voldemort, so he used this as a pledge of allegiance?"

"but……"

"I just want to ask if it's possible?"

Lupin remained silent for a long time before finally nodding and saying, "Yes! But what about Peter? One of his fingers was found at the scene, and if he wasn't dead, where could he have gone?"

Su Yu smiled dismissively: "What can one finger prove? I remember that chubby guy was also an Animagus, and a despicable, foul-smelling, cowardly rat at that."

“I told you before not to trust him, or you would all be ruined by him sooner or later, and you still said I was bullying him…”

"Forget about that. Given the current situation, if he turns into a mouse and hides, who can find him?"

“But he can’t stay a rat forever…” Lupin was still somewhat hesitant.

"Why not? Of course, I'm just offering a suggestion. Whether it works or not is none of my business. It's good for Sirius to suffer a bit more; who told him to be so arrogant before?" Su Yu waved his hand dismissively.

But Su Yu's words opened Lupin's mind. The more he thought about it, the more he felt that Su Yu's words made sense. Given Sirius's personality, it was absolutely impossible for him to betray his friends.

As Su Yu said, Peter Pettigrew's personality is somewhat cowardly and timid. Lupin also believes that he will not betray Potter, but if you compare him with Sirius Black, Lupin still trusts Sirius Black more.

If what Su Yu said was true, then Sirius Black was wronged. Lu Ping suddenly felt a little guilty and wanted to find out the truth.

Su Yu saw through his thoughts at a glance, so he said, "Stop thinking about it. There is only one way to find out the truth, and that is to find Peter Pettigrew."

"Do you think you can do it all by yourself? Forgive my bluntness, but you haven't been doing too well these past few years, have you? Trust me, do things for me, and I can give you what you want."

Su Yu finally revealed his true intentions. After saying all that, Su Yu didn't want to help Sirius Black overturn his case, nor did he really sympathize with or hate anyone.

He knew, of course, that Dumbledore's recommendation of Lupin as the factory manager wasn't just to help Lupin get a job; he also had the ulterior motive of keeping an eye on him.

Su Yu neither wanted to nor could expose Dumbledore. He had no influence or connections in Britain at the moment, and anyone with eyes could see the profits involved in a product like a magic phone.

Su Yu knew he couldn't protect this benefit on his own. With Lu Ping as the factory manager, he had the endorsement of Dumbledore. Anyone who wanted to cause him trouble would have to give Dumbledore some face.

But how could Su Yu be willing to be controlled by Dumbledore like this? At present, Lupin's biggest weakness is his friendship with James and Sirius.

He wanted to give Lupin hope, hope of rescuing his friend and finding out the truth about what happened back then, both emotionally and in terms of interests.

The scales in Lupin's heart will slowly begin to tip in his favor. Of course, it's impossible to make him tip in his favor all at once, but once the scales start to move, the result will no longer be one-sided.

Chapter 37 The Shop's Secret

In the shop Su Yu had just bought in Hogsmeade Village, Lupin looked at the phone in front of him and listened to Su Yu's explanation, and couldn't help but sigh:

"Su, you always manage to create things that are so imaginative and beyond the imagination of ordinary people. Without a doubt, this will be a groundbreaking alchemical artifact."

At this point, Lupin changed the subject, saying, "But what do all this have to do with my search for the truth about that matter?"

Su Yu waved his hand, signaling Lupin not to rush, and said, "Do you think this product will become a necessity for wizards throughout Britain, and even the world, in the future?"

“Very likely!” Lupin nodded. After just one trial, Lupin felt he had fallen in love with this magical phone. If all his friends had it in the future, he could communicate with them anytime, anywhere.

Su Yu added, "When we sell this product throughout the UK—well, not necessarily the whole UK, half of the market would be enough."

"When half of all wizards in the UK have magical phones, we can send out a notification through the official account saying that Professor Dumbledore's pet mouse is missing."

"Or, what if we held a pet mouse beauty pageant, asking people to submit photos of their pet mice and offering a substantial prize? Guess what the result would be?"

Lupin's mind started racing. He excitedly stood up and said, "All the wizards will send us pictures of their rats, and then we'll be able to find Little Pettigrew!"

Su Yu snapped his fingers: "That's right. Of course, there's a premise: Peter must still be in the wizarding community. If he's hiding in the wilderness, then no one can do anything about it, but I believe he won't do that."

“That’s right, you’re right. If he were still alive, he definitely wouldn’t have done that. He still needs information from the wizarding world, and this method is definitely feasible.” Lupin’s face was flushed.

Su Yu went along with it, saying, "I'll give you this phone as an employee benefit. Your task now is to sell the Magic Phone to as many people as possible. Are you confident in this job?"

“Of course, but you know my identity. I have to set aside some time each month to deal with my problems!” Lupin was confident, but also had concerns.

Su Yu tapped Lu Ping's phone screen, and after it lit up, he pointed to an icon and said, "This is the Chinese perpetual calendar. According to this calendar, this year is the Xinwei Year of the Goat."

As he spoke, Su Yu opened the perpetual calendar, which displayed today's Gregorian and lunar dates, along with a picture of the moon phase. He explained:

"In this calendar, the 15th of each month is the night of the full moon. I have set up an automatic reminder function for your phone, and it will send you a warning on the 14th, 15th and 16th of each month."

Lu Ping looked at Su Yu with some surprise: "You mean, according to this calendar, as long as it's the 15th, it's the night of the full moon? Regardless of which month?"

Su Yu nodded in agreement.

"This is amazing, thank you. This is very useful to me. If what you said is true, I won't have to spend time calculating anymore." Lupin clearly liked the function, but at the same time remained skeptical.

Su Yu didn't explain further, saying that Lupin would understand the profoundness of Chinese culture in a few months. He continued, "I will also ask Snape to customize a wolfsbane potion for you, but the cost will be deducted from your salary."