Traveling through Gensokyo, but the system is Jujutsu Kaisen?

The girl's black eyes looked at Alice in front of her, and then saw Ai Ge behind her, with a look of surprise in her eyes.

"Well, long time no see, Index." Alice greeted the person who came and pushed Aige, who was hiding behind her, forward.

"This is Sister Index, the chief magician of the demon world."

Ai Ge stuck her head out. The temperament of the person in front of her seemed somewhat similar to Patchouli from the Scarlet Devil Mansion, which made Ai Ge feel a little favorable towards her.

"Hello, Sister Index." Aigo walked forward, lifted her skirt and bowed. "My name is Aigo Margatroid."

"Ah, what a polite little girl." Index smiled and said, "My name is Index Humpf, just call me Index."

"Are you two here to learn magic? If so, come to the room and talk."

When they arrived at the library, when Index led Alice and Aika into the library, almost all the staff recognized them. Alice raised her hand to stop them from saluting, and then took Aika into the bookshelves.

Ai Ge was shocked by the tall library in front of her.

As the birthplace of magic, the library here is the largest in the Demon Realm, and it can be said to be the largest in the world. It is more than a hundred times larger than the library in the Scarlet Devil Mansion. Countless grimoires, magic books, even taboo books, and some unique copies have been preserved intact.

Most of the books here are magic texts, but there are also books about the humanities, topography, history, etc. of the demon world. There are even a small number of books from the outside world of Gensokyo, and even other places. Among them, there are also quite a few books that are not about magic. Even people who don’t understand magic, such as Reimu and Aika, can occasionally find one or two books that interest them.

Alice pulled the stunned Ai Ge through the huge bookshelves, and when she came out, the puppets beside her were already carrying all kinds of ancient books.

Several people came to an exquisite independent room where they would not be disturbed. As the little princess of the demon world, Alice certainly had such privileges.

"Well, although I heard from Yumeko and the succubus..." Index looked at Aika, who was still in shock, and couldn't help asking, "Is Aika really your daughter?"

"Of course." Alice picked up Ai Ge and said, "Look! She and I look so much alike. Ai Ge must be my daughter!"

"Ah, no, no." Index waved her hands repeatedly, but her expression became a little strange. "It's just... uh, that, the child's father... could it be that human who was traveling with us?"

Alice felt a little helpless about this. Why did she have to explain everything all over again every time she met an acquaintance?

Alice: "This, this, this, this..."

Index: "I see."

Glancing at Aige who was boredly reading a book on the side, Index glanced at the sealed magic book that Alice carried with her without leaving a trace, and then looked away.

"So, you want to bring Aige to learn some magic from me?"

Volume 2: Journey to the Demonic Realm: Chapter 76: The Man in the Book

"As expected." Index nodded.

"However, magic isn't something that can be learned overnight. Learning different types of magic requires mastering the corresponding knowledge. For example, to learn the magic of the Seven Stars, one must master the seven properties of the Seven Stars, understand the mechanisms of the Five Elements and the interaction between Yin and Yang, and also understand the various complex magic circles and spells."

"You know puppet magic well. Although it's easy to get started with, as long as you learn to use silk threads to control the puppet's movements, it's much more difficult than Seven Stars magic if you want to master it."

"Huh?" Aige knew that Alice could use puppet magic and Patchouli could use Seven Stars magic, but she wasn't familiar with the difference between them. "Is there any difference between these two types of magic?"

"If you must say, there's no essential difference between the two. But theoretically, in terms of depth, Puppet Magic is more powerful than Seven Stars Magic," Index patiently explained to Aika. "The most advanced Puppet Magic was achieved by your grandmother, Shenqi. She created life and the world. Besides her status as the Creator, her understanding and perception of Puppet Magic were also crucial."

"But this is difficult to achieve. After all, the only person in the world who can bring puppet magic to a level close to 'law' is your grandmother Shenqi."

"Of course the Seven Stars Magic is also very powerful. Theoretically, in terms of depth, it should be on par with Puppet Magic." When she said this, Index's face turned a little ugly.

"But because the gods on various alien planets, such as Tsukiyomi, Amaterasu, and Ikaros, each of them represents the seven elements of the Seven Luminaries. In other words, they are all elemental concepts represented by these seven elements."

"As long as they don't allow it, all magicians who study the Seven Stars magic will be restricted by those guys when they reach a certain level of research. As a result, they will never be able to make any progress in this field for the rest of their lives, and will eventually be stuck in the same field as me."

"To be frank... Seven Stars Magic is a pitfall! It's a trap! If I had known this would happen, I would have devoted myself to studying elemental magic. At least there wouldn't be any fairies or gods representing the elements to hinder your research at the last minute..."

Index muttered with a face full of resentment, looking bitter and resentful, which made Aige on the side stunned.

It wasn't until Alice coughed lightly that Index reacted and realized her mistake, her cheeks slightly red.

"No, sorry, ahem, I lost my composure a bit."

"It's okay." Alice understood why the other party was complaining so much. After all, as a magician, she could understand the other party's feelings about having his path to magic cut off. It would be better to say that Index's mentality was already good. After understanding this, she actively continued to study the Seven Stars Magic, hoping to take it a step further through other means.

Ai Ge had always been confused. She didn't know much about magic, but she did hear that "Seven Stars Magic is a trap."

"Is there anything wrong with the Seven Stars Magic? Didn't Patchouli also use the Seven Stars Magic?"

"Oh? So there are people in Gensokyo who use the Seven Stars magic?"

Index's eyes lit up as she explained, "But it's not a trap. To be precise, once you delve into the Seven Stars Magic to a certain level, you can no longer continue. However, there are only a handful of magicians who can reach that level. At least for now, I'm the only one I know of."

"And even if that's the case, so what? Haven't I spent the past few hundred years researching an alternative path supplemented by alchemy? Humph, just like the old saying from the human world, nothing is difficult for those who set their minds to it. As long as you put in the effort, even a fireball spell can one day be developed into a forbidden spell!"

"Oh oh oh." Aige clapped her hands.

After calming down, Index and Alice picked up the books on the table.

"Alright, let's start learning." Index paused. "Although I've never taught anyone before, if it's just the beginning of magic, with Aika's talent, it shouldn't be a problem."

"Ah."

Aige nodded obediently and sat in Alice's arms, like two children, one big and one small, listening to a story. The two of them listened attentively to Index's explanation of various difficult magical knowledge in the book in front of them.

However, what they didn't know was that in addition to the three people present, there was a fourth person who was also listening.

"Humph……"

The sealed magic book beside Alice trembled slightly, and an unnoticed humming sound came from the book.

"You can't even learn magic, what an idiot... Looks like I need to get back everything I have to my mother and my dear sister as soon as possible..."

……

……

"Here, this is dinner."

"Thanks."

There are some pawnshops in the demon world. After selling a few worthless spell tools in exchange for some demon world currency, Xiangbei bought some food for Rumia.

"Are you used to living in this house? If not, I'll expand it for you."

"No, it's good enough."

Behind the two of them was a small house made of alloy aluminum plates. It looked ordinary on the outside, but the interior was fully equipped with various daily necessities such as beds, electric lights, dining tables and chairs. These were all made by Xiangbei.

After taking care of Rumia's daily necessities, Xiangbei left. However, he did not return to the Hall of Demons, but found a quieter place.

After confirming that there was no one around, Xiangbei returned the "confiscated" Op gem.

However, Op was not returned to Rumia or Yakumo Hong in the end, but fell into Xiangbei's hands.

The abilities and items confiscated by those who were executed can eventually be returned. The difference is that the abilities are returned directly to the opponent, but the items can be kept or not.

He held the black Op Gem that Rumia had previously held in his hand. Before he could take any action, countless black mists surged out of it and wrapped around Xiangbei.

However, Xiangbei had already anticipated this result. He had successfully copied the ability to control darkness. When the emerging mist was about to hit him, he began to push the black mist back.

Although he was not yet proficient in the ability to control darkness, after a period of stalemate, he found that the black fog could not erode the north and finally shrank back into the gem.

"It's really amazing! If I weren't unfamiliar with how to control darkness, I could try to mobilize the dark power within Opp and use it as an ammunition depot for battle."

But after a few more days of training, he should be able to do it. He took Opu back, released Moxu Luo to the north, and then controlled the darkness to invade its body.

"Shadows are also part of darkness... Since Rumia can use darkness to enhance Makoto, then I should be able to do the same?"

Volume 2: Journey to the Demonic Realm: Chapter 77: It's Time to Strengthen Moxu Luo

"Hmm, that's a bit strange. Moxu Luo has completely adapted to the darkness, but if that's the case, there's no way to use darkness to strengthen it."

Although he was not very skilled in the operation, the process of converting cursed energy into darkness by imitating the technique would consume much more cursed energy than the reversal technique. However, with the six eyes and the already huge total amount of cursed energy, this was not a problem. He could just treat it as training the ability to use darkness.

Continuously using darkness to erode Moxu Luo's body, causing the darkness above its head to rotate twice. It seemed that it had completely adapted to the darkness.

If he wanted to use darkness to attack or corrode Moxu Luo, it would be useless, but at the same time, he would not be able to continue to use darkness to strengthen Moxu Luo's body.

This was naturally not feasible, so Xiangbei continued to release darkness towards Moxu Luo, and even called out some of the darkness in the Op Gem, allowing them to form a cocoon-like thing, trapping Moxu Luo inside.

Moxu Luo's ability is to automatically coordinate and adapt to all phenomena in the world. Every time the "Dharma Wheel" rotates, it represents the completion of adaptation. After enduring the same attack several times in a row, the adaptation process will be accelerated, thus becoming immune to and invalidating the techniques and phenomena.

For example: If Moxu Luo adapts to Cang's attack, it will ignore Cang's attraction and move freely even if it exerts maximum power at the center of Cang without being affected in the slightest.

Once Moxu Luo has adapted to "drowning", it will no longer be affected by the negative effects of drowning and will evolve organs similar to fish gills to become immune to the effect.

Both are manifestations of adaptation, but the direction and angle of adaptation are different. One is simple immunity, and the other is changing the body structure and growing corresponding organs to adapt.

This is another special feature of Moxu Luo's ability. Every time after completing the adaptation, when choosing to adapt to the same ability again, Moxu Luo will adapt again from another direction and another angle.

For example, in the original work, Mokūra's adaptation to Gojo Satoru's unlimited technique appeared twice in total.

The first adaptation was that Mokhuluo changed the nature and structure of his own cursed power to neutralize the effect of the unlimited and invulnerable cursed power, allowing Mokhuluo to ignore his own invulnerable defense ability and attack Gojo Satoru.

The second adaptation was that Makkulu expanded the target of his own spells, expanding them beyond just the Five Satori or the Unlimited Satori to encompass his own space, existence, and even the world itself, before completely severing them. This was the origin of the World Severing Slash and the 2.5 Satori.

Therefore, Xiangbei’s idea is that since Moxu Luo can adapt to the unlimited magic many times and finally adapt to the slash that cuts through the world, it should also be able to adapt to the darkness many times, and thus achieve the ability to control darkness like Xiangbei.

It should be possible. Xiangbei doesn’t think it’s a big problem.

And it actually worked.

It took about half an hour, during which time Moxu Luo successfully adapted again by changing the nature and structure of the positive energy of the reversal technique, so that they could be more targeted at restraining darkness, making the positive energy on the Demon-Repelling Sword work on darkness just like it would on ordinary cursed spirits.

"Click——"

The cocoon of darkness shattered, and countless dark fragments fell down and landed on the grass. They soon turned into liquid-like fluid properties and merged into the shadow under Moxu Luo's feet.

Moxu Luo's body seemed to have grown a little bigger as it absorbed the darkness.

"that's amazing."

Xiangbei praised and clapped his hands: "You actually mastered the power to control darkness and can use it to strengthen yourself... You are worthy of being called Sukuna Daddy, you are really amazing."

"In that case, it should be fine for Op to leave you alone."

Xiangbei buried Opp into Moxu Luo's body again. The mastery of darkness did not greatly increase Xiangbei's combat power, it was just an additional means of attack, but it was different for Moxu Luo.

Darkness with a scarlet glow surged out of Moxu Luo's body, constantly corroding its body.

But how could Moxu Luo, who had completely adapted to the power of darkness, be harmed by such an attack? Not only did the darkness not harm Moxu Luo, but it actually increased its strength.

"Ow—"

Moxu Luo's body grew bigger, and he swung the Demon-Repelling Sword in his hand. The sword energy that burst out caused sand and rocks to fly everywhere in the surrounding area, like a typhoon passing through.

Moxu Luo's aura and strength are increasing at a speed visible to the naked eye. Although Moxu Luo will not increase his strength indefinitely, this is certainly far from its limit.

"Looks like I can get another useful thug."

Xiangbei was very happy. He originally thought that after arriving in Gensokyo, since both his own strength and the enemy's strength had been greatly improved, Mokhuluo, who was not strong to begin with, could only be used as a decoration or pendant in barrage games or battles against big monsters. He did not expect that he could be further improved now.

Speaking of which, if I can master the power of the curse element, not only will I be able to be strengthened, but the Shikigami [Rika] should also be able to be further improved.

Then when I fight with others, I can pretend to be cool and say, "Don't get me wrong, this is not a one-on-one fight, it's a fight of three against one!"

That scene is beautiful just thinking about it.

However, the curse element cannot be found yet, there is no trace of Alphalu, and Moxu Luo has not yet fully evolved.

It looks like it will take quite some time.

He looked north at Moxu Luo, then looked in the direction of the castle.

Go back and report the news first, and then come back to guard Moxu Luo.

……

……

"Woooooooo..."

Ai Ge looked drowsy.

Index's explanation of magic was too profound. It wasn't Index's fault, but mainly because Aiko really had no interest in it.

Just like in class, the teacher was spitting all over the podium, but to the students below the podium, it was like a lullaby, making the listeners drowsy.

It was already quite late, and under Index's hypnotic voice, Aige was in a trance and fell asleep in Alice's arms without realizing it.

"oops."

Index naturally noticed that Aige was sleeping. Or rather, she had just noticed that Aige was very sleepy, and her voice had consciously been lowered a lot.

"It looks like our little princess is asleep."

"I'm so sorry." Alice touched the girl's blonde hair and showed an apologetic look. "I asked you to teach her, but Ai Ge fell asleep first..."