Hogwarts is located on a peninsula in the north of England, facing the Black Lagoon and backed by the Forbidden Forest. This ancient castle is thousands of years old and has seen the rise and fall of the wizarding world.

When Chen Yi came to Hogwarts, it was already dark, and the apparition manifestation and illusion transformation spell in the castle had no effect on Chen Yi at all, and he appeared directly inside the castle.

It was dinner time, and the students and professors were all eating in the auditorium, except for the ill-intentioned Professor Quirrell......

The man who usually stumbles in his speech is luring a troll towards the underground classroom in the castle.

"Hehe, it's quite a coincidence....."

Chen Yi chuckled lightly, turned on the camouflage skill, and followed behind Quirrell generously.

Guiding the troll to its intended location, Quirrell ran towards the Great Hall with a sneer on his face, 'talking to himself' as he ran.

"Master, just use the trolls to lure them all to the underground classroom, and we can go find the Philosopher's Stone!"

"Hurry up and get the Philosopher's Stone, I've had enough of this ghostly look!" An eerie voice came from Quirrell's hat.

Chen Yi watched coldly as Quirrell ran past him, and neither of them noticed his existence.

"Interesting...... Chen Yi is the first time he has met this kind of person with two souls.

Quirrell hurried away, and Chen Yi continued to follow the stupid troll, and then watched him staggering into the girls' bathroom......

"Hermione was one of my favorite movie characters in the past, but I didn't expect to meet a real person now......"

Chen Yi laughed secretly in his heart, and followed the troll into the girls' toilet.

"Ah~!" A scream came from the girls' restroom.

Hermione overheard Ron talking ill of herself behind her back today, she was a little inferior because of her bloodline, and she usually didn't have any friends, but now even Ron and Harry said the same about themselves. This sensitive little girl was so sad that she hid in the girls' toilet and cried all afternoon.

When she felt hungry and wanted to go to the auditorium for dinner, when she looked up, she saw an ugly troll staring at her viciously, so frightened that she quickly hid in the toilet cubicle.

But how could the small cubicle block the troll's gavel, and the troll smashed the toilet cubicle with a sweep, so that Hermione, who was shivering inside, couldn't help but let out a frightened scream~!

However, by this time, the troll had raised the gavel in his hand again, and little Hermione closed her eyes in despair, waiting for death to come......

But she waited for a while, and didn't see the gavel fall, she opened her eyes suspiciously, and saw a handsome Asian boy blocking in front of her, and at the same time a hand stretched out, releasing an invisible force to support the murder weapon, no matter how hard the troll tried, it couldn't smash the mallet down!

"This boy is so handsome!" This was Hermione's first impression of Chen Yi.

Seeing Hermione's eyes staring at her without blinking, Chen Yi smiled gently at the little girl.

"Well, no injuries, right?"

Hermione shook her head, and when the danger was lifted, the little girl's curiosity grew again.

"What kind of magic are you? Why haven't I seen it in the book? ”

"A simple application of magic, if you want to learn later I can teach you a chance! But remember to keep it a secret for me. ”

As he spoke, Chen Yi waved his hand lightly, and the surging magic power exploded instantly, slapping the huge body of the giant monster into the air, and falling to the ground without knowing whether he would live or die......

"That's amazing!"

Hermione's eyes flashed with little stars, and then she asked curiously, "Are you a senior student?" Why haven't I seen you before? ”

"I'm a friend of Dumbledore's and just arrived at Hogwarts today." As he spoke, Chen Yi stretched out a hand to Hermione.

Seeing this, Hermione handed her little hand to Chen Yi a little shyly, Chen Yi pulled the little girl up from the ground with a slight force, probably because of the excessive fright and some weak legs, the little girl did not stand firm and threw herself into Chen Yi's arms directly after getting up.

Harry and Ron arrived just in time to see the scene and opened their mouths wide in shock.

Ron suddenly noticed the corpse of the troll on the ground and exclaimed, "Oh my God~!" It's a troll! ”

"Hermione, are you alright?" At this time, Harry also reacted and asked with concern.

"I'm fine, I just ......" Hermione blushed a little and broke free from Chen Yi's arms, trying to introduce Chen Yi to Harry, but suddenly realized that she didn't know the name of the Asian boy.

"My name is Chen Yi." Chen Yi said with a smile.

"Well, it's Chen Yi! It was Chen Yi who just saved me! Hermione said.

Chen Yi stared at the boy with a lightning-shaped scar on his forehead in front of him, and soon felt a trace of discord in his body, which must have been Voldemort's soul fragment.

Probably sensing the threat, Voldemort's soul became agitated, and Harry felt as if the Asian boy in front of him could see through him, and then there was a sharp pain in the scar on his forehead.

"Uhh Harry squatted on the ground in pain with his forehead clutched, retracting his gaze without a trace.

"What's wrong with you, Harry?" Ron and Hermione asked with concern.

"I didn't know, just now my scar suddenly hurt......"

Harry got up with the help of the two of them, and said a little strangely, when he suddenly thought of Chen Yi's eyes......

"It can't be because of him...... Harry thought to himself.

Harry's screams alarmed Dumbledore, who hurried in with a few professors......

"What's going on here?"

Professor McGonagall looked at the smashed and tattered girls' toilet and the corpse of the troll, and asked the young wizards.

At this time, she suddenly saw Chen Yi standing aside, and a touch of shock flashed on her face.

"You.... You are! ”

Dumbledore said the rest of the words for her: "Chen Yi!"

"Long time no see! Dumbledore, and McGonagall......" Chen Yi smiled and nodded at them, while secretly winking at them, signaling not to reveal his identity.

"yes, long time no see, we should find a place to have a good chat, how is my office?"

Dumbledore extended an invitation to Chen Yi, and there were too many doubts in his heart. Where has Chen Yi been all these years? Why hasn't his appearance changed in any way?

"Absolutely." Chen Yi agreed, it just so happened that he wanted to be a professor at Hogwarts, what way was faster than to go directly to the headmaster of this school?

Snape saw that Chen Yi seemed to be an old acquaintance with Dumbledore, and glanced at Chen Yi with some surprise, and he had the impression that Dumbledore's friends were not all old men?

"Professor McGonagall, take care of things here."

After Dumbledore dropped a word, he left with Chen Yi.

Hermione and the three looked curiously at the back of Chen Yi leaving, this boy who was not much older than them seemed to be a person of great status......

"Alright, three, it's time to tell me why you came out in the middle of the night!" McGonagall said lightly.

"Professor McGonagall, the two of them came to me because I had seen how to deal with trolls in the book, so I wanted to give it a try."

Hermione took the initiative to stand up for the responsibility, after all, Harry and Ron were also affected because they came out to find her.

"Miss Granger, do you know how dangerous this is? If it weren't for Chen Yi's sudden appearance, the three of you might have been eaten by the trolls! ”

McGonagall said half-worriedly, half-intimidating, she didn't want these little guys who were not afraid of the sky and the earth to make any more trouble in the future......