Hell is being opened

Muzan died. 

When this happened, all the demons in the country burst and exploded into pieces of meat before they disappeared. 

All of this happened immediately, and no demons could escape from it. 

News of Muzan's demise spread like wildfire among the Demon Slayer Corps. Even without a word spoken, they knew that the tyrannical reign of Muzan Kibutsuji, the demon king who had plagued this world for centuries, had finally come to an end. 

Kagaya was the first person to realize this, especially since he was a descendant of the Ubuyashiki family, a family that had a relationship with Muzan and was cursed. 

However, this curse disappeared when Muzan was eradicated. 

The moment Muzan was killed, Kagaya could feel that his body felt better, and the illness that had plagued his body had disappeared. Nevertheless, as he had been with this disease for so long, he wasn't sure whether he could stay alive for so long, but it didn't matter since he should be able to see his children become older than he was. 

Naturally, as Muzan had been killed, there was still one job that he had to do, and that was to disband the Demon Slayer Corps. 

There was no need for this organization anymore in this world, especially when he didn't want to be thought of as a rebellious organization, but before that, every member would be paid handsomely.

Still, as everything was solved, Kagaya also had to pay the price for his action, which was a divorce. 

Knowing that Kagaya would be okay from now on, Amane knew that her existence was no longer needed, so she decided to leave, especially when she couldn't stay by Kagaya's side anymore, considering the father of the baby on her belly wasn't her husband. 

This was the price, the price he had to pay for using everything so he could defeat Muzan. 

Yet, how could Kagaya accept it? 

While it was true that the baby on Amane's belly wasn't his, Kagaya didn't mind since this wasn't something that Amane should have wished for, and everything was all due to Isao. Moreover, she had given him many children and also stayed with him for so long; how could he accept this divorce?

Kagaya even resorted that their divorce might cause a physiological problem for their children, yet for Amane, who knew about her husband's personality and knew that he could even kill his own children to erase the demons, such words were nothing but an excuse, something to stop her from divorcing him, but as expected, as a mother, she still cared about her children, so she decided to postpone the divorce until all of her children became an adult. 

Still, while he was troubled by his marriage trouble, if there was something that made him good, it was that Isao was no longer there. After all the demons in this world burst and exploded by themselves, Isao couldn't be seen as if he had disappeared. 

Yet, even so, Kagaya still paid Kanae and all of his women handsomely, especially those who had been impregnated by Isao. 

Watching all of those good women have their bellies slightly bulging, Kagaya had to say that he was glad that Isao had gone dead. After all, if Isao was alive, then wouldn't many women be harmed by him?

Still, as Isao had gone to death, then it was all good. 

Moreover, Kagaya knew that Isao loved money, so he was going to send a lot of money to compensate Isao. 

Fortunately, Kagaya wasn't the only one who had a complicated feeling since the original protagonist was even more so, especially when Tanjiro knew that his mother was pregnant. 

Yes, Tanjiro was happy that Muzan and all the demons had disappeared. While it was true that all of his training to become a strong Demon Slayer might not be needed, this experience was essential for him, too. At the same time, his mood became even better when he learned that Nezuko also had successfully turned into a human. 

This was great, he thought. 

However, when he learned his mother became pregnant, he felt conflicted, especially when he knew the father of the children wasn't on his mother's belly and wasn't his deceased father. 

While Tanjiro wanted to beat up that bastard who touched his mother, when he thought that Isao had disappeared, leaving his mother alone, he was helpless. 

Yet, as everything had happened, and he understood why everyone was kind to him, he could only accept it since he knew that all the benefits given by everyone were due to his mother's relationship with Isao. 

Even if Tanjiro had a hard time accepting everything, Isao had gone, and instead of mulling this matter over, he had to move on. Still, he thought to go to his father's grave, apologizing as he couldn't protect his family. 

"That guy..." 

Still, if someone was hit with most of Isao's disappearance, it would be Shinobu and Kanroji. Even though they were so close to him, they hadn't confirmed their relationship, and they also couldn't express the feelings that they had kept inside their hearts. 

Yes, they knew that this guy was a bastard who had many women pregnant, but even so... even so... when they thought they couldn't see his smile once again, they couldn't get up and just lifelessly sat still. 

Naturally, Kanae, Hinatsuru, Makio, Suma, and Kie also had a similar reaction when Isao disappeared, but they knew that he fought for the future of their children.

A world without a demon. 

This was one of his dreams, and he was able to achieve it. 

"But if you are gone, what's the point of it?" 

His disappearance meant that they couldn't feel his warmth, hear his laugh, or feel the comfort that came from his embrace. Everything that they took for granted was no longer there, as he had left this world. 

"No, he won't die." 

Kanae believed so, especially when she knew how durable and sneaky he was. At this moment, she believed that Isao should be somewhere in this country, harming and making many women pregnant with his children. 

When Kanae said so, everyone also thought so since they knew that if there was something that Isao was best at, it would be running away. 

As long as Isao was able to run away, it was impossible for his opponent to defeat him. 

Still, even so, they used the power of his company to search for him in the entire country. If there was something that they were glad for, it was how Isao had told them how to use people and manage his company. 

Did he expect this situation? 

Somehow, they felt their hearts tighten and couldn't breathe, thinking that he might have said goodbye to them indirectly. 

Yet, even so, they didn't show the sadness on their faces or affect their lives, especially when they were all pregnant. No matter what, the children on their bellies had to be taken care of first, their priority, and they definitely had to give birth to their children safely. 

Fortunately, after a month, the man that they had been waiting for returned. 

"I am back." 

Naturally, he wasn't alone, and on his side, there was also another mature woman, but it didn't matter since as long as he returned, everything was well, and frankly, they weren't strong enough to face all of them. 

So, was this a happy ending? 

Isao thought so since all the good characters didn't die and lived well, especially after they received good compensation from the Demon Slayer Corps.

With all of that money, even if they didn't work, they could live well until they passed away. Naturally, if they were sick due to their injuries as a Demon Slayer, it would be a different matter. 

Still, no one had to fight the demon or be afraid of being eaten by the demon, so everything went well. 

If there was a problem, it was the heart of those men who had a crush on those women who had been impregnated by Isao. 

Yet, a broken heart was like a broken limb, and with time, it would be healed. 

Only Yushiro cried when he knew the woman he loved was pregnant. 

However, everything went well; the protagonist had a good family and a new sibling. 

Everything was good. 

Everything ended in a happy ending. 

Still, Isao's adventure definitely hadn't ended; it was just beginning. But before that, he was going to learn to become a father since, as the hell was let loose, it was impossible to stop it anymore. 

---

This is the end of Kimetsu no Yaiba Arc! 

I try not to make it longer by not making the unnecessary chapter. 

Soon, he will return to the world of "Highschool of the Dead," then when everything is over, he will go to "Danmachi"! 

Looking forward to it!