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

After the lively banquet came to a complete end, there was one unavoidable ritual: singing the school song.

Because there was no fixed tune, Dumbledore let everyone improvise.

Inevitably, the school song was sung in a fragmented and disjointed manner.

The Weasley twins deliberately chose the tune of "Funeral March," and Dumbledore specifically conducted for them, the three of them perfectly coordinating to complete the final curtain call.

Dumbledore applauded them enthusiastically.

For a moment, everyone was speechless.

Then, Percy, who was the prefect this year, called on the first-year students to follow him, and he led them to the common room at Hogwarts.

The group left the grand hall that served as the restaurant, walked out of the restaurant, and climbed the marble staircase.

At this point, they discovered that the staircases inside Hogwarts Castle would move on their own over time.

This is a castle that seems to be alive.

Percy reminded everyone, "Make sure you remember the time, or you'll get lost."

This castle is like a maze; if you're not there at the right time, you won't be able to find your way accurately.

Just then, Percy, who was walking ahead, didn't notice that a bundle of canes suddenly appeared above his head.

"I've found you," a voice rang out above them, and then the canes fell down, some hitting Percy on the head, others hitting the unfortunate freshmen on the head.

Lin Yu was yawning when he saw a wooden stick coming down and instinctively raised his hand to swing it.

With a whoosh, following Lin Yu's thoughts, a gust of wind howled out, carrying the falling canes away.

Lin Yu was taken aback. He wasn't holding his own wand, and he was quite certain that he wasn't using spiritual energy either.

What's going on?

Moreover, he didn't chant any spells; it was as if he used magic with a casual wave of his hand.

Percy was humiliated by the blow to the face, and in a fit of rage, he shouted, "Pee-pee, I know it's you! Show yourself now!"

With a "poof," a small dwarf suddenly appeared above the crowd. He had a pair of evil black eyes, a large mouth, and floated cross-legged in mid-air, holding a cane in his hand. He grinned and said, "So you're first-year students. This is my gift to you."

As he spoke, he lunged at him.

Lin Yu frowned. He could let those ghosts go; they were just scaring the children and had no intention of threatening anyone.

But the guy in front of him was clearly an evil spirit, which is why he was criticizing Dumbledore for his inaction as headmaster.

Lin Yu had only seen the movie and hadn't actually read the original novel, so he didn't know much about Pipi Ghost.

However, judging from the other party's current behavior, Lin Yu narrowed his eyes and suddenly pulled out a flag and held it in his hand.

What was seen was a large banner, with a slender flagpole made of an unknown material, and a black banner fluttering on it, which was the Banner of Ten Thousand Souls.

Others might not feel anything, but Peeves, being a ghost, can sense an instinctive threat from the flag.

Immediately, Pipi Ghost stopped his momentum and turned to run away.

"You audacious monster, suppress him!" Lin Yu shouted, waving the flagpole forward.

But in reality, he had never used the Ten Thousand Souls Banner before; he was just waving it around casually.

However, Pipi Ghost felt a terrifying suction force coming from him, and at the same time, his body went out of control and he froze on the spot.

With the suction force controlled, the dazed face of the Pippi Ghost was sucked in until it was enveloped by the flag and then disappeared.

Percy watched this scene unfold, staring at Lin Yu in disbelief.

That's Peeves! Apart from Dumbledore and Barrow the Blood, it seems like no one in the entire Hogwarts can do anything to him.

He fears no one and always manages to cause trouble and pranks for people.

Unexpectedly, he was defeated by Lin Yu today.

Especially that flag; Percy carefully backed away.

Even the figures in some of the murals on the nearby walls have hidden themselves away.

Lin Yu didn't notice Percy's appearance. Instead, he grasped the Myriad Soul Banner and infused it with his own spiritual energy.

After some refinement, Lin Yu finally mastered how to use the Myriad Soul Banner.

The Banner of Ten Thousand Souls has a tremendous restraining effect on ghosts and spirits, making it their nemesis.

Moreover, once a soul is absorbed into the Myriad Souls Banner, it will be controlled and refined by the banner. No matter whose soul it is or how powerful it was in life, it will become a servant of the banner's master.

The Banner of Ten Thousand Souls itself has no other abilities, but its owner can summon the souls within it for their own use.

In other words, the power of the Ten Thousand Souls Banner is determined by the number and strength of the souls within it.

This is a powerful tool with immense potential.

Lin Yu nodded secretly, and casually put the Myriad Soul Banner back into the system space before noticing that everyone was looking at him.

Lin Yu quickly reminded him, "Aren't you going back to rest? Don't you have class tomorrow?"

Percy then continued leading the new students forward.

Finally, they arrived at the end of the corridor, where a portrait hung. The portrait depicted a very wealthy woman dressed in pink.

"Password?" the woman in the portrait asked.

Percy replied, "Dragon scum."

The woman in the portrait then walked away, revealing a circular hole in the wall.

Percy said to the group, "We've arrived. Go through here and you'll find our Gryffindor common room."

With that, he was the first to crawl inside.

The freshmen looked at each other in bewilderment.

"I'll go first," Lin Yu said, walking over first. He was tired too, so he crawled in.

After passing through the cave entrance, Lin Yu found himself in a circular room filled with soft, armchairs.

Behind Lin Yu, the other freshmen climbed in one after another, with Neville needing someone to help him up.

After everyone had come in, Percy first led the girls through one door to their dorm room, and then led the boys through another door.

They were clearly in a tower, so after going up a spiral staircase, they finally found their resting room.

Moreover, their luggage was also delivered, except for Lin Yu's luggage, because his luggage had always been in his own system space.

Since everyone was in the same room, they quickly assigned their beds and prepared to lie down.

"Meow."

A voice called out, and Lin Yu's eyes lit up. Before he could look down to look, he felt a fluffy ball jump into his arms.

That's right, it's snoring.

Sure enough, it came looking for us.

"Snoring, snoring, snoring."

The cat curled up comfortably in Lin Yu's arms, making happy noises all the while.

That's why Lin Yu called it Huru.

It was already very late at night. Lin Yu hugged Hulu, crawled into bed, and fell asleep immediately.

It seems he's adapted quite well to life in the magical world.