I, The System Maker

In an instant, a purple eerie glow filled everyone's vision.

Slowly, chains appeared on the cover of the Book of Darkness, binding it.

The Book of Darkness, emitting an ominous light, floated towards Chu Chen's direction. The book continuously swelled, shattering the chains that bound it. Its pages flipped incessantly, but strangely, there were no words on them.

As the seal of the Book of Darkness was released and activated, four figures gradually appeared before Chu Chen.

Alicia and Hayate watched everything from behind Chu Chen.

"The activation of the Book of Darkness has been confirmed!"

"We are the Guardian Knights responsible for collecting the Book of Darkness and protecting our master!"

"We shall guard by our master's side!"

"The Wind and Cloud Knights obey this command!"

Chapter 51: Haibara Ai: Illya's tone is just like a resentful wife who's always alone in an empty room... (Bonus Chapter)

Chu Chen silently entrusted the utterly bewildered Four Knights to the equally bewildered Hayate.

He framed it as: "Hayate must be lonely at home by herself. It might be better for her to have them for company."

Then, Chu Chen's only command to the Four Knights was: "Protect and take good care of Hayate. The Book of Darkness was once in Hayate's possession. I don't believe no one in the TSAB noticed this, but there must be a reason they haven't acted. Once the Book of Darkness leaves Hayate's side, I fear someone will come looking for it. Therefore, I ask you to protect and take good care of Hayate in my stead!"

Signum, as the leader of the Wind and Cloud Knights, naturally obeyed her master's command.

The four of them still carried the bloodthirsty aura inherited from Guberkal.

Chu Chen merely chuckled at this, believing that Hayate would change the personalities of these four...

After that, Alicia and Hayate exchanged contact information, but Chu Chen did not.

The reason was simple: Chu Chen had just arrived in this world and had no contact information. Chu Chen's mobile phone was even from the world of The Idolmaster.

So Chu Chen just said that when Alicia came to Hayate's house, he would also come over.

If Hayate wanted to contact him, she could contact Alicia to reach him.

Hayate was a little disappointed because after Chu Chen severed her contract with the Book of Darkness and after Chu Chen's treatment, her legs actually responded. She even felt much more relaxed overall.

Therefore, Hayate was truly grateful for the help Chu Chen had given her and really wished she had Chu Chen's contact information so she could interact with him more. In Hayate's heart, Chu Chen's status was undoubtedly rising, even becoming the number one person in her heart...

Although Chu Chen had some ulterior motives, the inherently kind Hayate wouldn't think of that.

Even if she did think of it, Hayate wouldn't care.

After leaving Hayate's house, Chu Chen was now basically ready to return to the The Idolmaster world.

Nanoha, Fate, and Hayate, the "three giants," had all been marked by Chu Chen. Now, he just needed to return to the The Idolmaster world.

As soon as his system was completed, he could hand the system over to them.

It could be said that Chu Chen had basically completed everything he needed to do in this world. The root cause of the plot conflicts in Nanoha's two seasons had been easily resolved by Chu Chen. Collecting the Seeds of the Holy Stone was just a matter of time. Hayate's uncle in the TSAB was also being watched by the Four Knights, so there was no need to worry about any problems.

It would only take a little more time for the plots of these two seasons to essentially conclude like this.

So now Chu Chen could directly return to the world of The Idolmaster.

However, Chu Chen didn't want to leave without saying goodbye. So before leaving, he still had to inform Fate, Nanoha, and Precia. Although he had little interaction with Nanoha, it didn't mean Chu Chen disliked her. It was mainly due to a lack of time. Illya and Miyu's fight against Assassin and Berserker only took two days, and Chu Chen needed to abandon some necessary communication to resolve this matter within those two days. Anyway, Nanoha and the others would eventually receive his Check-in System, and he would have plenty of time to interact with Nanoha and the others...

After all, to increase the favorability of the three giants to some extent within two days, Chu Chen had to make choices.

Hayate and Fate's favorability could be increased to a very high level. For the former, he just needed to become friends with her and help her heal her legs, and their relationship would skyrocket.

The latter was even simpler. As long as he resolved the issue between her and her mother, Chu Chen's relationship with her would also skyrocket. Even if it didn't skyrocket, gaining enough favorability from Precia was a natural advantage.

As for Nanoha, Chu Chen could only rely on gradually interacting with her to gain favorability.

There was no other way; Nanoha didn't have such obvious methods for increasing favorability like Hayate and Fate.

"Brother Chu Chen!" After a day of collecting the Seeds of the Holy Stone, Nanoha and Fate walked towards Chu Chen, hand in hand.

Fate's face was flushed, and Nanoha looked full of energy. The two of them standing hand in hand gave Chu Chen the impression of a married couple.

"Tsk tsk... this is the legendary true love! I approve of this marriage!" Chu Chen couldn't help but mutter.

"Eh! Are Nanoha-nee and Fate-imouto actually in that kind of relationship?" Alicia exclaimed in surprise.

However, for some reason, there was a hint of excitement in Alicia's expression.

"Not at all!" Precia couldn't help but glare at Chu Chen, causing him to smile wryly.

Alicia might be a yuri supporter, but he forgot that there was her mother, who had a normal orientation!

"Cough cough... Alicia, some people's relationships are even more inseparable than lovers or even spouses!"

Under Precia's threatening gaze, Chu Chen still imparted rather normal knowledge to Alicia.

Seriously! This is a yuri anime! What's wrong with imparting some yuri knowledge! What a fuss!

However, under Precia's threatening gaze, Chu Chen silently... conceded!

"It looks like you all had a lot of fun... Nanoha, Fate..." Chu Chen said with a light smile.

"Of course, Fate and I are very good friends now..." As she said this, Nanoha hugged Fate tightly.

A faint blush appeared on Fate's cheeks, and she didn't object to Nanoha's words...

To show the friendly relationship between Nanoha and Fate, Precia brought her family over to Nanoha's house for dinner one evening. Incidentally, Nanoha's mother, Takako, showed an unusual amount of enthusiasm towards Fate.

Under Ilyasviel's rather fearful gaze, Takako grabbed Fate's blonde hair and refused to let go.

Seeing this, Nanoha by her side started to feel jealous. However, whether she was jealous of her mother or Fate was unknown.

Ilyasviel: "Ahhhhhhh!!!! Someone's going to die! Ahhhhhhh!!!! That Berserker is going to kill us all! Ahhhhhhh!!!!"

Miyu Emiya: "We're fine for now, but after Illya used Archer's card, a black Illya separated from her body. That black Illya is currently locked in a struggle with Berserker. Rin and Luvia are more or less injured. Illya and I have transformed using Magical Girl Transformation Cards, so we can at least stall them... Mr. Chu Chen, please hurry!"

Ilyasviel: "Miyu, can't you make it sound more serious? You're making Teacher Chu Chen, that bad guy, worry!"

Illya was full of resentment. Teacher Chu Chen had gone to other worlds and basically ignored them, which was too much!

Haibara Ai: "Illya's tone sounds just like a bitter wife who's always left alone at home..."

Ilyasviel: "...o(////▽////)q!!!"

Ilyasviel: "What are you talking about! Ai! I'm not a bitter wife!"

Chapter 52: An Unkillable Enemy (Bonus Chapter)

On the rooftop of a rather upscale building in Fuyuki City, Tohsaka Rin and Luvia stood in the center with Illya and Miyu, who had already changed into their Magical Girl outfits, quietly awaiting the arrival of midnight.

"Has Chu Chen not returned today?" Tohsaka Rin couldn't help but glance at Luvia.

Miyu was currently staying at Luvia's house. If Chu Chen returned, he would definitely come to pick up Miyu.

And since Miyu was still staying at Luvia's house, it meant Chu Chen hadn't returned yet.

It was the last day, and Chu Chen still hadn't returned? Where on earth had he gone!

Tohsaka Rin wasn't helpless without Chu Chen, but this time their opponent was Berserker, a guy who only knew how to fight and nothing else. Furthermore, the Mirror World was shrinking as it was continuously repaired. Today was the last day, and the Mirror World might shrink to an unimaginable extent...

These were actually things Chu Chen had reminded them of before he left...

Fighting in such a confined space, Tohsaka Rin was somewhat worried about encountering an opponent like Saber.

She and Luvia weren't afraid of death; they were Magicians and were always prepared for it.

But they couldn't drag down these two children, Illya and Miyu...

Tohsaka Rin harbored this thought in her heart.

"Don't tell me you've taken a liking to that teacher... Are you planning a teacher-student romance, Tohsaka Rin?"

Luvia looked at Tohsaka Rin with a half-smile.

"Hah? If you have a problem with your brain, go see a doctor. Don't suddenly pop out and act crazy, you'll scare people!"

Tohsaka Rin's mouth twitched fiercely. She rolled her eyes and mocked the other party.

"It's the last day, and those two still haven't changed their ways... Li Kai and the others were so right back then!"

Ruby couldn't help but complain.

"Miyu-sama, haven't you contacted Lord Chu Chen?"

Sapphire couldn't help but ask Miyu from the side. Miyu had already told Sapphire about the System. She felt it was necessary to be completely honest with Sapphire, so Sapphire knew that Miyu could contact Chu Chen through the System Network.

Although Sapphire was also surprised by the System, Miyu's own newly acquired abilities made Sapphire have no choice but to believe in such unscientific things.

"No... I don't want to disturb Mr. Chu Chen's work. If we can defeat them, we won't need to trouble Mr. Chu Chen!" Miyu's face showed a hint of forced bravery, leaving Sapphire speechless.

Her master was good in every way – calm, rational, and basically never lost her head due to any factor. However, she had one personality trait that made Sapphire feel heartbroken: sometimes she was just too stubborn.

Since Miyu didn't want to contact Chu Chen, Sapphire didn't plan to say anything more. After all, she wasn't in that network. If she could contact him, Sapphire would have already sent Chu Chen a private message.

"Ruby!"

Time was up. Illya and Miyu gave the order simultaneously, and a dazzling light instantly shone on the building's rooftop, illuminating the night sky filled with darkness.

The next moment, everyone found themselves on the rooftop of the building in the Mirror World.

However, the instant they appeared, Illya and Miyu felt as if their hearts were being squeezed.

"Scatter quickly!" Illya and Miyu shouted instinctively, simultaneously shielding Tohsaka Rin and Luvia respectively.

Under Tohsaka Rin and Luvia's horrified gazes, the ground beneath their feet suddenly exploded.

The most violent impact directly struck Illya and Miyu.

"Bang!"

Illya and Miyu, shielding Tohsaka Rin and Luvia, were blasted away like bullets.

"Physical defense full power!" Ruby and Sapphire didn't forget to activate their physical defenses.

Fortunately, both Illya and Miyu had been enhanced by the System, otherwise, that single blow—

"Ugh..." Tohsaka Rin and Luvia clutched one of their hands. Despite Illya and Miyu's protection, they were still injured. There was no helping it; Berserker's power was too immense.

The next moment, the huge, tower-like black figure appeared before them.

A powerful oppressive force directly surged towards Illya and the others.

"That is—"

"Berserker—"

Tohsaka Rin and Luvia's faces were filled with shock. Facing an opponent of this power type put them at a severe disadvantage. They had just witnessed firsthand as the ground was shattered by this giant.

[Ilyasviel / Miyu Emiya triggered item check-in: Berserker Class Card]

[Check-in time limit: 30 minutes]

[Check-in reward: One random ability, skill, attribute, etc. of Heracles]

"Petrifying Mystic Eyes!"

Miyu was the first to react, quickly stepping forward. Gem-like radiance enveloped the Berserker before her.

The intense pressure caused Berserker to roar in response, its muscles beginning to bulge.

"Install—Saber!"

Heroic, azure armor clad Miyu's body, and Sapphire in her hand transformed into a holy sword.

Without a word, Miyu swung the holy sword in her hand towards the Berserker.

"Miyu!" Illya watched Miyu charge forward with a look of deep anxiety. Her gaze instinctively fell upon the Archer Class Card that had fallen from her person—it was Illya's only Class Card.

Was it over just like this?

...No way! We promised we'd fight together, Miyu! How could I back down here!

I still have... power I haven't revealed!

The next moment, Illya placed her hand on the Archer Class Card, and then—

Illya's consciousness began to fade...

At the same time, Miyu, looking at the Berserker bound by the Mystic Eyes, raised the holy sword in her hand high.