Being at Hogwarts, something's not right with this system.

When the Grangers returned in the evening, Lin Yu took out two longevity pills from the dining table.

"Uncle Granger, and Aunt Granger, these are pills I refined. They can increase your lifespan by fifty years and make your bodies healthier," Lin Yu said, pulling out a Grade Three Longevity Pill.

In fact, with the 100,000-year-old elixir in his possession, he could refine a Grade 9 Longevity Pill.

However, Lin Yu had never refined such high-level pills before, and even with two different flames at his disposal, he was afraid he wouldn't be able to control the heat properly.

To be on the safe side, he refined a batch of Grade 3 Longevity Pills, with a total of ten pills in one batch.

Although it's only a third-grade pill, if word gets out, it will be enough to make countless people envious.

Even wizards would probably scramble to buy one.

After all, who would complain about having too much life?

Moreover, Lin Yu has also started to change his way of addressing them, no longer calling them "Mr." and "Mrs.", but instead calling them "Uncle" and "Aunt."

However, Mrs. Granger followed her husband in marriage, and her surname also became Granger.

The Grangers took the pills and looked at the round pills in their hands, momentarily at a loss.

Although Mr. Granger was a dentist, a dentist is also a doctor, and he couldn't help but ask, "Has this been tested?"

is it safe?

Hermione was displeased and stood up, saying, "Lin Yu's pills are really good stuff. I only became beautiful and gained the aptitude for cultivation after eating the Marrow Cleansing Pill. If you don't want to eat them, give them to me. I'll sell them; they'll be worth a lot of money."

Even a Marrow Cleansing Pill can sell for a thousand Galleons, and Draco is the sucker for it.

I'm sure that once news of this longevity elixir spreads, it will only cause a greater sensation.

Seeing how anxious she was to prove Lin Yu's innocence, the Grangers felt that they had raised their daughter in vain.

So you're already turning your back on us?

"Alright, alright, we'll eat it then," Mrs. Granger rolled her eyes and was the first to put the pill in her mouth.

She believed her daughter wouldn't harm her, especially since they already knew their daughter was a little witch. They didn't understand magic anyway, so they just trusted her.

Just as Mrs. Granger was about to take a glass of water to swallow the pill, she found that the pill in her mouth melted instantly and emitted a sweet fragrance as it went down her throat.

And immediately, Mrs. Granger felt a warm current surge through her body, instantly spreading throughout her entire being.

It felt like soaking in a hot spring; it was indescribably relaxing and comfortable.

Moreover, she felt that her body had become younger, and her body, which had begun to feel weak in middle age, had regained its vitality.

Mrs. Granger's eyes lit up, and she subconsciously looked at the pill in her husband's hand.

Mr. Granger watched his wife anxiously the whole time. Seeing her eyes become fixed, he couldn't help but ask, "Are you alright? Should we call an ambulance?"

Mrs. Granger shook her head and asked, "Do you want some? If not, you can have it for me."

Mr. Granger rolled his eyes. Oh well, he had worried for nothing. It turned out she was eyeing the pills in his hand.

Mr. Granger immediately raised his hand and threw his own pill into his mouth.

In that instant, he finally understood how his wife had felt, and he also felt as if he had become at least ten years younger.

The couple, both in their thirties, look like teenagers – can you believe it?

"My God!" exclaimed Mr. Granger, "I feel like I could live another fifty years."

Of course, that's the effect of the elixir.

For a moment, the couple was finally shocked and impressed by the methods Lin Yu had demonstrated.

They exclaimed in surprise, "This ancient Eastern country is indeed very mysterious!"

Once the couple had calmed down, Hermione said to them, "Our holiday is coming to an end, and we have to go back to Hogwarts tomorrow."

The Grangers suppressed their surprise and fell silent.

They still couldn't bear to part with their daughter, but they had no choice but to accept it silently.

Mr. Granger sighed. "Go ahead, but don't forget to come back for Easter. And summer vacation starts after Easter, doesn't it?"

Hermione is just going to Hogwarts to study; she's not not coming back.

They could only console themselves with this.

Hermes found it funny; she was the one who was the child, while her parents were the ones who were worried.

Mrs. Granger also said to Lin Yu, "After you leave, we'll clean up the guest rooms and prepare a room for you. You and Hermione can come back together during the holidays."

"Okay," Lin Yu agreed with a smile.

What he really wanted to say was that it didn't need to be so complicated; he could live with Hermione.

But he didn't dare to say it.

Since they were leaving the next morning, Lin Yu personally cooked a Chinese meal.

In the past few days, the Grangers have been completely won over by his culinary skills, and they were pleasantly surprised to find that chicken wings and cola produced a magical effect.

Cola chicken wings are so delicious?

They initially thought it was some kind of bizarre or terrible food.

It's a bit funny for a Brit to suspect someone of making terrible food.

Because Hermione and Lin Yu were leaving the next day, the Grangers forced a smile.

Mr. Granger even said to Lin Yu, which was unusual for him, "I'm starting to get used to sleeping with you these past few days. After you go back to school, take good care of Hermione. After all, she's your girlfriend."

Lin Yu replied, "Don't worry, I will. As long as I'm alive, no one can hurt her, not even myself."

This was a promise he had made to Hermione before, and now, in front of Hermione's parents, he was making that promise again.

Moreover, he is serious and will never forget his promise.

After dinner, the family sat in the living room and chatted for a long time until it was very late before they prepared to rest.

Nothing was said that night, and the next morning arrived.

Because the Hogwarts Express departs at 11:00 AM, they ate breakfast at home before the Grangers drove their two children to the station.

"Then we'll be going."

Hermione and Lin Yu stood outside the car, saying goodbye to the Grangers.

The Grangers had intended to take them to the platform, but since they were ordinary people, they couldn't go to Platform 9¾, so they had to give up.

The Grangers watched their two children enter King's Cross Station before driving away.

On the other side, Lin Yu and Hermione arrived at the platform smoothly and, before more returning students arrived, got on the train and found a carriage that was not yet occupied.

Just then, the long-awaited system notification sounded: "Your first training expedition has successfully concluded. Your current mission is to return safely to Hogwarts... Sect. Mission complete. Reward: 100,000 low-grade spirit stones."

Is this even considered a mission?

Lin Yu and Hermione exchanged a glance and both shook their heads, finding it amusing.

Lin Yu thought of something and said, "After we get back, we'll need to improve our cultivation level again."

It is now January 7, 1992, and Lin Yu has obtained four more drops of spiritual liquid.

He had accumulated a full sixteen drops of spiritual liquid in his hand, enough for them to advance their cultivation level once again.