From Azkaban to Hogwarts.

"That's good," William said, sounding quite relaxed. "How was your holiday? Did you find an internship?"

"Not yet, Professor!"

"I found it!"

...

The chaotic and disorganized responses made the classroom noisy, but the atmosphere was surprisingly good.

“It’s too chaotic, slow down, slow down,” William pressed his hands down to signal the students to be quiet. “Start from over there, briefly talk about your future plans.”

He pointed to the first student on his left, the Hufflepuff kid, who stood up without any hesitation. "I got an internship at St. Goman's Hospital. If my score on the Ultimate Wizarding Exam is good enough, I should be able to work there."

“That’s a good job,” William nodded. “I remember there are a few books in the restricted section of the school library that would be perfect for you, but the titles aren’t great… I’ll just write them down for you after class.”

A group of students laughed. Most of the students who could study in the advanced class knew how unique the dark wizard's naming method was, and the titles of the books in the forbidden section were simply unreadable.

"Thank you, Professor."

“Next,” William said, looking at the next student. He intended to find out what these children wanted and then do his best to help them.

...

In summary, the aspirations of this year's students are all somewhat related to self-defense—there is probably no doubt that students who managed to get into the advanced class in the previous Hogwarts environment love this course.

"I just did a count, and less than half of the students are inclined to focus on treatment or other areas that only require knowledge of protection. The rest need more knowledge of action and combat."

William looked at the students and said, "If this is your aspiration, then I will have to arrange the actual teaching accordingly."

"In the three semesters of seventh grade, we studied theory together in the first semester, started practical courses after Christmas, and then started cramming for exams after Easter."

"Except for the first semester, attendance is not taken for the other courses. Students who need internships can choose whether or not to participate in the courses. Is that alright?"

"No, Professor."

The students unanimously answered that the conflict between internships and courses was the most troublesome thing.

"That's good. Now let me see what you've learned over the holiday. Let's go to the other classroom!"

A group of students packed up their books and followed William, chatting and laughing.

Upon arriving at the new classroom, William opened the door and stood in the doorway.

"Hmm, a temporary test, Ironclad Spell."

He smiled at the students behind him, “Get your wands ready. Those who can catch the Sleeping Charm can continue the lesson, and those who can’t can consider resting until the end of get out of class—there are plenty of cushions and blankets in the classroom.”

As they spoke, the cushions and blankets floated out under William's control, piling up in a thick heap on the ground, so that even if the cursed person fell, they wouldn't have to worry about getting hurt.

"I'll come first!"

"I'll do it!"

...

A bunch of students didn't take it seriously at all, having a great time playing around—it was just a last-minute assessment, whoever failed was unlucky, it was just a fun game.

“You go first,” William pointed to the child who was to be the doctor, and then waited for him to stand in front of the mat.

"Are you ready?"

"No problem, Professor!"

"One, two..." William waved his wand gently and recited the spell in a normal tone, "Faint and fall to the ground."

The Ironclad Spell appeared as the incantation flew into the air, then collided with the Ironclad Spell, producing a muffled thud.

"Passed, next."

William nodded, indicating that the child could go in.

The students behind them instantly became excited and couldn't wait to try out this absolutely safe environment, but William didn't let them have their way and directly called on the next person.

After a few people passed by, the surrounding students finally noticed that something was wrong.

"The professor's sleeping spell is too consistent, isn't it? The power of the spell is under perfect control."

"Shh... Don't forget, the professor is a top-tier dark wizard, otherwise how would he have gotten in..."

"Shh!"

The whispers around him reached William's ears, but he remained unfazed and looked at the next student.

That's about it... this is the last one.

'Okay, next... we need to make an example of them.'

William smiled at the remaining students, "Percy, you lead the charge, focus all your defense on defense, and don't use the Silent Spell."

He called Percy out directly and then gave him specific instructions.

"Ah? Yes, Professor,"

The Silent Spell has a great advantage in terms of concealment, but it also sacrifices the power of the spell. William's words naturally meant that he should focus on defense.

Percy had barely stood there when he shouted the spell.

"Armor protects you!"

A thick barrier appeared around him, startling the students watching—it's just a small test, why are you making such a fuss?

But before this question could even settle, William showed them the reason through his actions.

He flicked his wand lightly, and with just that one flick, a spell flew out without a sound. The students watching could only see a flash of light, and then a huge impact sound reached everyone's ears. Some people even raised the hand holding the wand and put it directly to their ears.

"Clang! Snap!"

The sound of the impact was muffled by the sound of something breaking, and then Percy, as if drunk, slumped backward.

But he didn't seem to want to just collapse like that, and was still trying to regain his balance.

"Forehead…"

He struggled, even showing signs of regaining his balance and standing up again, but ultimately he swayed and collapsed. Then, the sleeping spell worked, and he fell asleep.

'This child is progressing faster than I expected…'

William inwardly praised him, then controlled Percy and the cushion blanket to fly towards the wall.

"next."

He announced this to the students with a smile.

But the children who were just playing around were stunned, so William simply called out their names.

The child whose name was called came over with a pained expression, as if they had an upset stomach.

"Pay close attention to your defenses. Although the Sleeping Curse isn't fatal, I won't have the other students wake you up if you're still asleep by the end of get out of class."

Amidst the child's despairing expression, William announced with a smile.

"Iron armor protects you!"

With a shout that seemed to come from the utmost of its power, the Ironclad Curse appeared.

But William still waved his wand lightly.

This time there wasn't even a sound of collision; with a cracking sound of shattering, the child landed directly on the cushion.

"next."

William announced softly, flicking his elbow with his wand, and the child floated to the corner along with the blanket and cushion.

'Gulp…'

The obvious sound of swallowing saliva alerted everyone; something was wrong.

The children who remained were all students who had chosen to study self-defense techniques; those who were doing internships, medical treatment, or other related fields had already gone in!

Looking at the large pile of mats on the ground, most of them understood William's intention.

If they're not mistaken, each mat has its own owner...

But no one tried to escape this so-called temporary test. Putting aside the fact that the professor had put a bunch of people in solitary confinement last year, what if they suddenly passed the test while waiting in line?

Although Percy Weasley is both a prefect and student council president, they passed the test that Percy failed, so doesn't that mean...?

But the wish was beautiful, while the reality was cruel.

Despite each student's best efforts to use the Armor Charm, William's seemingly casual, silent spell shattered their Armor Charms, followed by a highly skillful movement of cushions and blankets to the corner of the wall.

"This is the last one, hurry up."

William looked at the last student with a smile, his tone extremely relaxed.

Although she seemed eager to lie down on the cushion in a graceful pose, after hesitating for a long time, she decisively used the Ironclad Charm with all her might.

However, after William waved his wand, she, like the children before her, went straight through the whole process.

William waved his wand and led her to the group of girls.

William casually cast a few protective spells and kept the classroom door open before stepping inside.

There were only a handful of people to begin with, and now there are hardly any left…

Last year, there weren't many students qualified for the advanced class, and now more than half of them are lying outside, making the classroom look incredibly empty.

However, those guys need to work harder if they want to actually apply protective magic in their work.

If we can't even defend against his attacks, how will we face the dangers outside in the future?

"Alright, now we can have a serious discussion."

William announced this to the students with a relaxed expression, but everyone's expressions were not very pleasant.

Make an example of them; with a bunch of them lying around outside, how can things be easy here?

“Let’s start with you,” William smiled. “I remember there are quite a few categories of healing, how’s your knowledge of common black magic wound identification going?”

"Thank goodness, Professor!"

The student who was called on looked very serious, as if he wanted to answer the question in the most standard English.

"Don't be nervous, we're here to discuss things. You just need to understand those protective spells, but you'll need to work on your professional knowledge."

William smiled and comforted the students.

"It's good to take a nap now. Realizing my lack of strength before the internship is not a waste of time to practice the Ironclad Spell. This magic is the most practical."