C.S.O. - EXTRA

 "Yu-kun, do you have any free time after school?"

"Hmm... I only have extracurricular activities scheduled. Why?"

"I just wanted to know if you could accompany me to buy a book."

"...that's unusual."

Certainly, Yuya felt surprised. In this digital age, buying books is usually done through digital bookstores.

"The book I'm going to buy is a bit special. Well, if you don't want to, I don't mind at all."

Yuya sighed.

He didn't know where Fumiko learned that technique, but he couldn't escape it.

"I didn't say I can't. But before that, I have to inform my friends first."

Upon hearing that, Fumiko smiled happily.

"You're such an understanding boyfriend."

"Thank you. We should have lunch quickly. The break time will be over soon."

◼️▪️▪️▪️

After school, Fumiko and Yuya went to the place where Fumiko wanted to buy the book.

Since the place turned out to be quite far, they took the train and had to pass two stations.

Inside the train, many advertisements were visible. Among the frequently appearing ads, there were many advertisements about the best VRMMO game of the present time, Celestial Soul Online (CSO).

No, more precisely, it was returning to being the best.

"It has been one year since that incident. What are Kuro-san and the others doing now?"

Everyone still remembered clearly the events that took place in the event one year ago. It was the biggest event in CSO history, involving almost all players (libers). It not only caused a stir in the whole world but also held various unsolved mysteries.

One of them was the phenomenon of the sky cracking and connecting to CSO. Then, due to the many side effects experienced by the players, CSO's reputation began to decline, and the number of players decreased drastically.

Despite many unfavorable things, it didn't mean that CSO was shut down. Thanks to that event, many became interested in what CSO was like.

But out of all that, the most sensational thing was the theory of the existence of demons and angels, who became the main characters in that event.

Of course, many regarded it as just a part of CSO's overly advanced technology, but there were also quite a few who believed that both existences were real.

"I'm sure they're doing fine now. I'm just annoyed because they didn't give any updates at all."

Since that event ended, the whereabouts of Kuro, Chiaki, Ruko, and even Mea were unknown. Not only that, the Valkrye Maidens, who were the main characters in CSO, had also never appeared since then.

Yuya and Fumiko had searched for them in the real world or even in CSO, but they couldn't find any news about them at all.

As friends, of course, this made both of them worried.

Speaking of which, do you know about the rumors that have been circulating recently?"

"About the Valkrye Maidens starting to show themselves lately? I'm quite interested, but it's still just a rumor."

They arrived at their destination and then got off the train.

"Is the place still far?"

Fumiko checked the location through GPS.

"Not far. It's about 10 minutes from here."

They then walked towards the place where Fumiko wanted to buy the book. They entered a residential area and finally found a not-so-big bookstore.

Fumiko immediately looked happy when she finally saw many books displayed in the store. At times like this, she looked like a child.

Yuya himself wasn't the type of person who enjoyed reading books, but when he saw books in their paper form, he had to admit that it gave a new atmosphere to him.

He was slightly interested and started browsing around.

That's when he realized it. The books sold in this store were slightly different from the bookstore he had imagined.

The books being sold were old books, or rather, old books containing urban legends and ancient times. Of course, not all of them contained such books. There were even school textbooks, but the majority were old books.

"Mi-chan, did you find the book you wanted?"

"No. I'm sure this store sells that book, but it's still difficult to find."

Although there were many books, Yuya couldn't find any clues about the book Fumiko wanted.

"If it's difficult to find, why don't you ask the store owner?"

"Are you sure you want to do that?"

Yuya was confused, but when he looked at the store owner again, who was an old lady who trembled all the time, he changed his mind.

Will this store be okay? he wondered.

"If Hilda-san has finished school, I'll ask her, but she's busy with extracurricular activities."

"Who is she?"

"A clubmate and the granddaughter of the store owner."

"..."

"Hilda-san is the one who told me to look for the book here because her grandmother sells old books. Of course, there's no guarantee that the book is here, right?"

If Yuya had known it would be like this, he would have chosen to spend time on a date, but seeing Fumiko's happy expression, he didn't feel it was so bad.

"Alright, at least tell me the title of the book you want. I'll help you."

Fumiko then mentioned the title of the book she wanted to buy. For some reason, after hearing it, Yuya felt a little regretful.

One hour later, they finally found the book Fumiko was looking for. It was an old book that told the story of a clan from ancient times.

Fumiko wanted to read it quickly, but Yuya asked her to restrain herself because it was getting late.

If they went home too late, Yuya would get in trouble with Fumiko's family.

Being childhood friends, Fumiko's parents knew Yuya well, but that's why they trusted him. Yuya didn't want to betray that trust.

When they arrived at the house, Yuya went to Fumiko's neighboring house. Visiting a girl's room might be a bit problematic, but not for them.

However, they had already crossed the line. Because of this, Yuya promised that he would propose to Fumiko when the time was right. Of course, this received a positive reaction from Fumiko's parents.

But when he heard Fumiko's parents ask, "When will they have grandchildren?" it gave Yuya mixed feelings.

"So why do you want to buy that book so badly?"

The book Fumiko bought was titled 'Legend of the Demon Clan.' The book explained a cursed clan from ancient times.

"You'll find out once you read it."

Without explaining further, Fumiko handed Yuya the book she had already read.

Yuya was surprised at how Fumiko managed to finish such a thick book in a short time, but after opening the book, which was not as complicated as he thought, Yuya felt happy.

For some reason, Yuya felt like he was reading a book titled 'How to Make Reading Easy to Understand for Monkeys.'

Pushing aside his strange thoughts, he finally started reading.

The opening of the book talked about why Japan was called the country of 8 million gods and goddesses. The reasons why they were worshipped and how the worship was performed.

The book also mentioned the hierarchy of the gods and goddesses and how they played a crucial role in maintaining their existence.

Then, finally, the book mentioned the clan that made a pact with demons to gain power equal to that of the gods and goddesses.

And with that power, they killed the gods and goddesses.

With inhuman powers and committing sinful acts, the clan became a feared cursed clan in ancient times.

Because of this fear, many regional leaders wanted to exterminate the clan, but all their attempts were in vain. Instead, the armies of the regional leaders were annihilated.

After that, not much was mentioned in the book, so Yuya stopped reading.

"This book..."

"Well, it's just a book about legends, so Yuya doesn't need to think too much about it. But if the contents of the book are true, we finally get an explanation about the lost history."

Yuya wasn't very good at history, so he didn't quite understand.

"Is that all you want to know? This book can't provide definitive answers."

"I know that. But read the last part of the book."

Without hesitation, Yuya obeyed Fumiko's command. The last part only contained the author's musings.

But that was just the beginning. The middle part mentioned the distinctive characteristics of the cursed clan.

'To avoid mixing with other blood, the cursed clan practiced incest marriages.'

And-

'They are a clan without limits, unbound by boundaries.'

After reading that, someone immediately came to Yuya's mind.

"Hey, Mi-chan. Don't tell me the cursed clan mentioned in this book is..."

Fumiko just smiled and answered, 'Who knows.'

"But whether they are the descendants mentioned in that book or not, will it change our relationship with them?"

Of course, the answer was,

"No."

(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~

A few days later, Yuya and Fumiko logged into CSO.

As usual, they embarked on missions together. In CSO, they were already married, so it wasn't strange for them to do this while on a date.

They had now reached level 500 and successfully entered the fourth world. Although their levels were high, it didn't mean they were considered the best players. On the contrary, they were more like lagging players.

"For some reason, this mission reminds me of when we met that person."

"Haha..."

The mission they took was to save a village from a dragon zombie attack.

The dragon zombies not only attacked the village but also spread disease. So they had to kill the dragon zombies as quickly as possible.

"But this mission is quite strange. It's rare to have a mission related to Undead-type monsters."

"I think it's normal. We rarely encounter missions against Undead-type monsters in Avantheim, but that's why we took this mission."

"I can't win against you. Oh, look, we're already in front of the cave."

The mission finally began.

Upon entering the cave, they fought against bat-type monsters, lizards, and slimes. Since these were low-level monsters, they easily defeated them.

And in the end, they encountered the final enemy.

Death Dragon, level 456.

Death Dragon wasn't a rare enemy in missions, so the way to defeat it was widely known in CSO.

The battle wouldn't start until the players (libers) entered a certain distance, so Yuya and Fumiko could strategize even when facing the enemy directly.

Of course, that was the case in regular missions. For special missions, these rules didn't apply, so it wasn't a guarantee for the players.

"We'll defeat it in the usual way."

"I understand, but look at that!"

Yuya looked in the direction Fumiko pointed. He saw a rather large egg.

"That's not a normal dragon egg..."

"Yeah..."

Although there were many giant-sized monsters in CSO, most dragon eggs were small. The egg they found was slightly different.

"Could it be that the dragon is guarding that egg?"

"I don't know..."

"But maybe we're lucky. Usually, monsters like this will drop rare items."

"...let's start again."

Fumiko sighed as she watched Yuya's enthusiastic demeanor. It wasn't unusual, so she understood it.

Yuya then stepped forward.

He wielded a large sword the size of his body, which was one of his weapons for slaying large monsters. The weapon reduced Yuya's agility but provided significant strength.

"Feel this, Flare Blast!!"

The first attack was a huge success. Yuya then ran around the Death Dragon, looking for an opening.

The Death Dragon attacked with its tail. Yuya dodged and used the Bind skill to create footholds in the air and attack again.

The attacks didn't have a significant impact. The Death Dragon began attacking with a death breath.

"Ice Ivy!!"

Before it could open its mouth, Fumiko's skill prevented the Death Dragon's mouth from opening, canceling the attack.

Taking advantage of the immobilized enemy, Yuya launched a powerful strike.

"Inferno Blast!"

The battle then proceeded smoothly. They won without using any potions.

After defeating the enemy, the dragon's body disappeared and left behind an item drop.

The item drop they obtained this time couldn't be considered special, but it was better than getting nothing.

"Oh well... We can still exchange it for money."

"Oh my..."

"The problem now is..."

They both looked in the same direction. A human-sized egg.

"Huh? I can't carry it. What about you?"

"I'm the same."

If it were part of the item drop, they could store it. But in this case, there was only one possibility.

The egg wasn't part of the item drop and was just a mission accessory.

"Tchh!! I thought we would get something good. Useless!!"

Frustrated, Yuya kicked the egg, sending it flying far away.

Fumiko immediately hit Yuya's head with her staff.

"You idiot. We still don't know anything about that egg. What if it's related to a hidden mission?"

"Sorry. But I couldn't help it."

"For now, let's just take it with us."

"Even though you say 'us,' you want to make me do it, right?"

"Yu-kun, what did you say?"

"Nothing."

Yuya couldn't win. He finally approached and intended to take the strange egg out of the cave.

But before he could touch it, the egg cracked.

"Yu-kun, you managed to hatch the egg. Congratulations."

"What do you think I am, a mother hen? Be cautious because we don't know what's inside."

They both assumed a fighting stance. At the same time, the egg finally cracked completely and revealed its contents.

"..."

"..."

When they saw the contents of the egg completely, they were left speechless. They were frozen in shock.

That was normal. Whatever came out of the egg was something abnormal and unexpected for anyone.

"Damn. I didn't expect someone to find- oh... Yuya... and... Fumiko. How are you?"

They didn't immediately answer and only glanced at each other to confirm.

Then...

"Inferno Blast!!"

"Icicles Storm!!!"

"Eh?"

They launched deadly attacks at whatever came out of the egg.

"hey whoah......I can't believe you attacked me with such deadly skills. My goodness, you really seem to hate me."

"Whose fault is it for coming out of the egg? Are you a chick?" Yuya replied angrily.

"That's not an egg but a bed that looks like an egg, guaranteed to sleep soundly until never waking up again."

"Isn't that a suicide item? And is there such an item in CSO?"

"Yu-kun, you should remember how it affected Kuro-san, so don't listen to everything he says."

"Ah... you're right."

"You guys are so cheeky."

Currently, the three of them were in Yuya and Fumiko's house on one of the floating islands in Alfheim.

The island was small, and everything belonged to Yuya and Fumiko, purchased after saving money for three months of missions.

The house was small but filled with a happy aura that made visitors feel comfortable.

"Kuro-san, please enjoy your tea."

"Thank you. Somehow, you seem like a wife."

"It's a kind of practice. Besides, someone has promised to marry me."

"...Hm?"

Kuro looked surprised, but he wasn't confused about who Fumiko was referring to.

"I congratulate both of you."

"We haven't officially married yet, but thank you."

"Instead of discussing us, I'm more curious about what you did after that mission. Disappearing for a year is outrageous."

"Also, your status is so abnormal. What really happened?"

They could see Kuro's status, which showed a level of 6788. At first glance, it looked like a deliberately falsified status, but they knew that Kuro wasn't the type of person to do that.

In fact, if Kuro intended to show it, his actual status would be even higher.

"Well... many things..."

Kuro showed a nostalgic gaze.

"I already have children from my wives."

"..."

"..."

It was happy news, but it was also surprising news.

"Wait, I want to congratulate you, but I heard something strange there. What do you mean by 'wives'?"

"Don't I have more than one wife? What's surprising about that?"

Both of them remembered that in CSO, Kuro had three wives. But that was only in the game, not in the real world.

"Hmm... Could it be that during this year, you went to a country that legalized polygamy? I'm so jealous..."

"Yu-kun... What did you just say?"

"It's nothing."

Yuya immediately bowed as if he had been defeated. Seeing that, Kuro smiled.

"It could be said like that, but not really. I also want to hear what happened between you two, but I don't have time."

"Why are you in such a hurry?"

Not only in a hurry, but Kuro's face also looked panicked.

"Well... actu-"

Boom!!

Before he could finish speaking, they were startled by a loud explosion coming from outside the house.

Yuya and Fumiko immediately went out of the house to see what was happening.

And somehow, they were once again surprised.

"W-well... I didn't expect to see all of you so soon. How are you... everyone?"

Yuya didn't quite understand why all the Valkrye Maidens and the three people who disappeared a year ago were outside his house right now.

But he knew one thing, all of this had something to do with their guest.

"We're all fine, um..."

"You don't know them yet, so of course, you wouldn't know."

"Chiaki-chan, don't blame Flamia. By the way... I also forgot who they are."

"..."

Yuya immediately slumped down, not expecting to be forgotten so easily. Meanwhile, the other Valkrye Maidens had various expressions on their faces.

Some were expressions of pity.

"It seems like I have to introduce myself again. My name is Fumiko, and this is Yuya. We are both Kuro-san's friends in the real world."

The Valkrye Maidens responded by introducing themselves one by one.

"So what is the purpose of all of you coming here? I don't think you came just for a reunion."

"That's right. We came to find someone who escaped their responsibilities. Do you understand?"

Fumiko nodded, although still looking confused.

"What do you mean by that, Kuro-san? If you're looking for him, he's inside."

"We know that. And that's why we came here."

There was a tracking feature in the husband and wife relationship in CSO, so Fumiko could guess what had happened.

"But why did everyone have to come together?"

If they were just looking for Kuro, one person would be enough. It didn't have to be like this.

"We have no choice. If we're alone, Onii-chan will run away from us."

Fumiko wanted to ask 'Why would Kuro run away from them?' but at that moment, Flamia's face turned blue and she felt nauseous.

Then Flamia went into the bushes and did something predictable.

"Oh... I see. When he said he has children...?"

Many questions arose in Fumiko's mind at the moment, but only one came out.

Besides, is it possible to have children in a virtual world? No. There is a simpler explanation.

Flamia is pregnant, and her morning sickness carried over to the virtual world (?).

Chiaki sighed.

"It's just like before. Flamia always takes the lead when she's pregnant with Kuro-chan's child. I can't believe she's taking the lead again."

"Hm?"

Something sounded wrong in their ears.

Again?

"I think you already know the general outline, so I don't need to explain it again."

Both of them nodded.

They understood. And somehow, they felt better not understanding.

"So, it's time to catch Onii-chan and make another child."

An aura of competition immediately filled the air, as if it was a race to defeat a boss enemy.

Yuya and Fumiko realized that there was nothing that could stop them at the moment.

"Do as you please, but don't damage my house please."

"We will - ah, Onii-chan flew over there."

"Don't let him escape."

"Why is it always Flamia? Kuro seems to want to receive punishment."

"Don't talk too much. We have to search for another month if he manages to escape."

Shortly after, the place became deserted, leaving only the two of them.

Then, without much talking, they entered the house.

"I give up on becoming the Harem King."

"You finally understand that having me is enough, huh?"

"I can't deny it."

"Don't worry. If you look for other girls, I'll make sure you won't be able to do anything."

"..."

For some reason, Yuya's hair stood on end.

In the end, they lost their curiosity about what happened to Kuro and the others.

Although they didn't meet, they were happy knowing that Kuro and the others had a happy life (filled with battles).
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Why so serious? anyway, this Novel has come to an end. I want to say thank you for your time reading this, I also want to say sorry for the consistency in this project. Thank you and see you

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