Time rewinds ten minutes earlier.
In the uninhabited zone on the outskirts of the Nishikawa Nation's royal capital, a towering black structure was particularly conspicuous, almost piercing the clouds.
The tower was entirely black, its surface covered in dense runes that shimmered with a dull luster under the sunlight.
The top of the tower pierced straight into the clouds, which slowly rotated around its peak.
This was the new Impel Down, built by Makoto modeled after the underwater prison from the One Piece World.
It was now break time.
Saeko, one of Makoto's wives and the warden of this prison, was chatting with the young women under her command.
At her waist hung the gift Makoto had given her in the One Piece World... the Shodai Kitetsu.
Although Saeko was like a delicate, clinging woman in front of Makoto, her true nature was that of an unapologetic sadomasochistic battle maniac.
Graduating from school and coming to work here was a perfect fit for her. And the people under her command, more or less, had sadomasochistic tendencies.
For example, Reze, also one of Makoto's wives and a member of the Perverted Girls' Group.
She leaned against the windowsill, a lollipop in her mouth, her legs crossed, her eyes half-closed, as if savoring something.
And the sisters, Kocho Shinobu and Kocho Kanae, who had joined Makoto's team in the last two years... the two sat on the sofa in the corner. Shinobu was pouring tea for the other women in the break room, while Kanae smiled as she read a book.
And Miyamoto Rei, who was currently still studying at the Superpower Academy but occasionally came to Impel Down for part-time work.
The Kocho sisters had also been brought back by Makoto from a game world.
Over these two years, Makoto and his group had been chosen by the Reincarnation Game to go to other worlds many times and had encountered many characters from other anime worlds who needed to be dealt with.
Makoto and his subordinates hadn't killed these people either.
Instead, like collecting stamps, they captured them alive, brought them back to the real world after clearing the instance, and threw them into Impel Down to be slowly tortured.
For example, Shou Tucker from the Fullmetal Alchemist World.
That's right, the father of the little girl who liked to say 'Onii-chan'.
Sugou Nobuyuki from the Sword Art Online World.
Kibutsuji Muzan from the Demon Slayer World.
Oomori Yamori from the Tokyo Ghoul World.
Ryomen Sukuna and Mahito from the Jujutsu Kaisen World, and so on.
These were all criminals Makoto and his group had captured from other worlds and locked up in Impel Down to be tortured, like collecting stamps.
And as Makoto cleared these worlds, he would also bring some young women from these worlds to the real world to join his team.
Of course, he hadn't slept with all of them.
Some women simply wanted to follow Makoto. For example, Shinobu... she was just a sadomasochist who wanted to torture Muzan and Doma.
But if Makoto wanted her, she would absolutely not refuse.
After all, if Makoto hadn't intervened in the Demon Slayer World, her most precious sister would already be gone.
She actually wished Makoto would sleep with her, as a way to repay her debt.
Besides, Shinobu didn't like owing favors either.
Rei was originally an ordinary high school girl. Later, when she applied for the Superpower Academy, Saeko noticed her talent and enrolled her.
After two years of study, she had also achieved considerable success.
The weapon Rei now wielded was the Holy Spear that Akai Shuichi had used in the other world.
Because she had been discovered by Saeko, Rei had naturally become her follower and planned to officially join Impel Down after graduation.
Besides them, most of the Nazarick NPCs whom Makoto had brought back from the other world also worked at Impel Down.
After all, these people were basically hostile to humans and weren't suited to surviving in normal human society. Impel Down was the best destination for them.
It could provide them with a suitable living environment and also satisfy their penchant for tormenting people.
Except for Floor Guardians with relatively normal personalities like Sebas, Pandora's Actor, and Cocytus, the others, like Demiurge, Shalltear, and Albedo, basically all worked at Impel Down.
Now in her twenties, Saeko, the warden of Impel Down, had changed into a military uniform similar to Yamashiro Ren's, looking quite imposing.
The military uniform wrapped her figure, which was even more curvaceous than Yamashiro Ren's, yet this outfit only made her look more seductive.
"Darkness was screaming so loudly yesterday. How about we drip wax on her tonight?"
The lollipop in Reze's mouth rolled from the left corner to the right. Her eyes curved into two crescent moons.
The sound of Darkness's cries, half like crying and half like laughter, still echoed in her mind.
Just as the Teddy Devil and the others had predicted, after arriving in the real world, Darkness had immediately hit it off with Saeko, Reze, and the others. They gathered every day after work to research all kinds of ways to play.
Yesterday, Darkness had done a turtle shell tie and hung in mid-air while Makoto fucked her.
Saeko smiled and reminded her sister, "There are children here. Be mindful."
The Kocho sisters and Rei, who were still virgins, all blushed.
Following these perverted female bosses, they felt like they were becoming impure.
Rei, her face red, leaned close to Saeko's ear. Her voice was as soft as a mosquito's buzz. "Saeko-senpai, when can I join?"
Before, when Makoto's group had been chosen to go to the Demon Slayer World, Miyamoto Rei and her boyfriend Igou Hisashi had also been chosen. To be precise, her ex-boyfriend.
Because shortly after entering the Demon Slayer World, Hisashi was killed.
Just as Rei was about to be killed too, Makoto's group happened to pass by and helped her kill an Upper Moon Demon.
After that, Rei also joined Makoto's team.
And the longer she spent with Makoto's group, the more she realized the importance of power.
Although Makoto had too many women around him, Rei really wanted to get ahead.
By joining Makoto's harem, she could have everything.
For this reason, after returning to the real world, when faced with a confession from her childhood friend Komuro Takashi, she refused without hesitation.
'Sorry, Takashi, you're a good guy, but I already have a loftier goal.'