After a long time -

Ginny finished her story in tears, "Professor, will I, am I going to be expelled?"

"No, about that you can be completely at ease."

...

As Ginny returned to her place with red eyes, Ron and the twins stared at her.

Ron tried to say something, but Ginny completely ignored him as she moved her little chair near Luna, who hummed a goofy little tune softly in her ear.

The twins fidgeted a bit for the rest of the day, but thankfully, Professor Hap let them go with a wave of his hand after he had them turn in their proposals that they had written.

"Ginny, what's going on?" Not long after leaving the office, George couldn't help but be concerned about his sister.

Ginny shook her head.

"Did Professor Hap criticize you, Ginny? I mean, it does seem a little dangerous for you to go to the Forbidden Forest, right, Fred?"

Fred said without thinking, "That's right, if you're interested in the Forbidden Forest, I can show you the way ... It's not actually much fun, it's all trees, rocks, flowers, and grasses of some sort."

She chewed her lip rigidly without speaking.

Luna and Ginny held hands as she said in a mermaid-like voice, "Professor Hap is quite nice to talk with, isn't he? However, you don't look good, I do suggest you take a trip to the school clinic."

"Thank you, Luna."

" You know how-"

"Fred, George, and Ron, I'm fine. I just," Ginny said, taking a deep breath, "had some trouble a while ago, and Professor Hap helped me out."

Seeing that her brother still wanted to speak, she said with a stern face, "I'm not going to tell you guys." Ginny pulled Luna and stomped off.

Fred looked at her back and said with great emotion, "Ginny has grown up, not the little one following her brother's bum."

George spat out, "So you miss the old days?"

"Uh, isn't the reason we miss it, because we can't go back to the past anymore?" Fred made a funny face.

The two of them were laughing and joking around.

For the next week, Hogwarts remained as calm as ever.

Every evening, the nine young wizards reported to the Ancient Magic office to complete some tests according to Professor Hap's directions.

In fact, most of them had their confinement scheduled on a weekend, except for Ron, whose 'bad nature', combined with Lockhart's strong suggestion, had led to his confinement being a full thirty days in a row.

But when Professor Hap promised them that they could offset the subsequent confinement according to their attendance, the other young wizards volunteered to complete the entire confinement process here with him almost without any struggle.

The reason was simple: all the other professors had boring and repetitive work, and only Professor Hap was the most interesting.

By the third or fourth day of development, they had formed a research group in a decent manner across houses, discussing the improvement of the 'answer space' in a serious manner.

Not just talking in general, but really getting into it.

Seeing how enthusiastic the young wizards were, Felix was happy to see this and was willing to give guidance.

But as the only technical advisor and judge, he had to veto impractical ideas one after another, picking out only the easiest of them to improve.

"Little wizards, this professor is not omnipotent and cannot accommodate all your wild ideas."

These were the original words of Professor Hap when the twins suggested that a 'video call' feature could be added to the parchment.

Finally, at Felix's suggestion, the young wizards devised several versions.

The most rudimentary and primitive version was similar to the one they had seen that day, only with the addition of different house logos and enriched feedback functions.

The twins and Ron played a huge role in this.

The feedback on the parchment can be roughly divided into two categories: compliments when the answer is correct, and trolling when the answer is wrong.

The twins impressed other young wizards in their group with their level of venom, while Ron rode the path of compliments, with a variety of flattering words that could be considered corny.

"Actually, these are the exact words of a Lockhart fan," Ron explained.

And the subsequent version, with the professional advice given by Professor Hap, they completed a stepwise iteration of the program based on the difficulty.

The leaderboard was the highest level at this point was easy to solve - he could use synchronization enchantment to summarize all the information on the parchment, into the delicate scroll he was holding.

This thing actually plays the role of a server.

Only it is not that intelligent, after getting the data it needs to arrange the high and low order artificially.

As for other versions of features, like online matches, friends lists, and division of subjects, they were not something he could solve in a short time, nor could they fit on a piece of parchment, and Felix pushed them directly to the distant future.

By the end of the week, the twins and Graham Montague and Marcus Flint had completed their confinement, but they chose to stay behind and prepare to finish the job.

Ginny and Luna did the same.

Hermione, after stumbling upon the existence of the research team, immediately applied to Felix to join this temporary team.

With Felix's deterrent, no one dared to openly refer to the conflict between the houses, at most showing a mocking expression, although Professor Hap's gaze tends to follow suit at the time.

"I didn't think that we would be able to do something together, and my partner in crime turned out to be a Slytherin!" Fred muttered to George one day.

"Hey, who would have thought it anyway? It's more unbelievable than not getting into a bit of trouble at the end of our term." George shrugged.

The twins' eyes fell on the Slytherin Quidditch captain-

With Marcus' intelligence, he was incapable of offering any brilliant insights, but he basically represented the lower limit of the young wizards, and it was he, as a pure tester, who tried out the 'answer space' bug time after time.

Something like, "Professor, why did the writing on top of the parchment disappear?" "Oh, it took so long for you to figure out that I thought you were asleep".

It was until the morning of the tenth day that Felix woke up early and prepared to go to the Room of Requirement to finish his magic practice for the day.

The features of this house were something he had only recently explored.

In fact, as early as the first attack occurred, Felix discovered the Room of Requirement by accident, but he always thought that it would be a mysterious room to hide things.

At best, the concealment magic imposed on it was not bad and worth some research. The matter, however, was actually rather low on his priority list.

It wasn't until Tom in his diary told him the real secret of this room that he picked up his interest again.

The Room of Requirement could flexibly change the interior to meet the user's needs according to his whims.

This nearly instantly pulled his desire to research at full capacity, but Felix was unable to analyse the secrets of this room at all using his existing knowledge, and he could only vaguely see the magic channels that littered the room through a hidden perspective.

''The magic supply of the Room of Requirement is rooted on the Hogwarts Castle.''

This was Felix's thought.

Although his research was hindered, he developed a new way to use it, which was to practice magic spells inside.

He could use his full power without fear, including his instant killing skills. The benefits of this were obvious; at least, he didn't have to go back and forth for an hour, running deep into the forbidden forest to practice.

...

At dawn, Felix walked through the empty corridor.

When he finished his training for the day and about to go downstairs to find something to eat in the kitchen, he bumped into Lockhart.

He is hauling a large box in his hand, with two smaller boxes floating behind him.

"Professor Lockhart?"

The sudden appearance of the voice startled Lockhart, and the two boxes he had been barely levitating fell to the floor with a 'thud'.

"Who's there?" Lockhart shouted in a low voice.

Felix's figure came down from the steps, and he looked Lockhart up and down, "Professor Lockhart, are you going out?"