Chapter 257: Returning to the DxD World—Researching Teleportation Gates!
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The next day—Kisara and Seitenshi learned about Roy's actions through the news.
Every channel was reporting on the sudden disappearance of a large portion of the human population.
But the news of the complete eradication of the Gastrea also brought tears of joy to the remaining humans.
The creatures that had threatened them for so long, forcing them to live in fear within the Monoliths, were finally gone.
This was a joyous occasion.
Some even claimed that this was divine punishment.
But regardless of the reason—A new era for humanity was about to begin.
Kisara and Seitenshi—watching the news, exchanged smiles.
Roy had fulfilled their request and saved this world.
Although his methods were a bit drastic, he had still done it.
They were deeply grateful.
They went to the bedroom and looked at Roy, who was sleeping peacefully with the little girls.
Roy suddenly opened his eyes and looked at them with a puzzled expression. "What are you doing?"
"Roy, thank you," Seitenshi said sincerely, bowing her head.
"Thank you," Kisara also said with a bow.
"Are you two crazy? Waking me up just to thank me?" Roy grumbled, then smirked. "Well, since you're already here..."
He gestured towards his crotch.
Kisara and Seitenshi blushed, but they still did as he asked.
——
Roy continued transporting the Cursed Children to the DxD World—A hundred thousand at a time.
The city he had created was named "Dreamland" due to its fantastical appearance.
The little girls were enrolled in schools, and Saya, Shizuka Marikawa, Rika Minami, and the others, who were bored at home, took turns teaching them.
The Cursed Children—having experienced the harshness of the world, were surprisingly well-behaved and mature for their age.
This made things much easier for Roy and the others.
——
Aside from transporting the Cursed Children—Roy also spent time with Kisara, Seitenshi, and the little girls, enjoying their company.
After ten days, most of the Cursed Children in the world had been transported to Dreamland.
The remaining ones were either unwilling to leave due to their strong bonds with certain humans or hadn't accepted Roy's protection.
Roy didn't force them.
He had already collected over a million little girls. A few more wouldn't make much difference.
Having completed his mission in this world—Roy decided to return to the world of High School DxD with Kisara, Seitenshi, Enju, Kayo, Tina, and Kohina.
——
As soon as they arrived back in Dreamland, the little girls swarmed them.
"Roy-sama is back!"
"It's true! Roy-sama is back!"
The girls were overjoyed. It seemed they were happy here.
No one hated them or hurt them here.
And without the threat of the Gastrea virus—they had nothing to worry about.
Compared to their past lives, this was paradise.
"Alright, alright, little ones, it's time for class," Roy said with a smile, gently shooing them away.
He was now a man with over a Million Daughters!
——
After sending the girls to school, Roy took Kisara, Seitenshi, and the four little girls to one of the schools managed by Sona.
"Sona-chan, we're back!" he announced.
Sona, startled by the familiar nickname, thought it was her sister Serafall.
But then she saw Roy and rolled her eyes playfully.
"Sona-chan, you're such a capable wife. You've managed the city so well," Roy praised, having observed the city's order and efficiency upon his return.
This was not only due to the well-behaved nature of the Cursed Children but also Sona's excellent leadership skills.
"I know, right?" Sona replied with a smug grin.
"Who are these two?" she asked, noticing Kisara and Seitenshi, whom she hadn't met before.
"Heh, this is Kisara Tendo, and this is Seitenshi," Roy introduced them.
"Sona, please enroll Kohina and the others in this school," he added.
Kohina suddenly clung to him tightly.
"I want to stay with Daddy!"
Roy chuckled and patted her head. "Of course you can stay with me. But you need to go to school too, Kohina. You can make lots of friends there."
Kohina thought for a moment, then nodded obediently.
——
Enju, Kayo, and Tina were more obedient and didn't object to Roy's arrangements.
"Seitenshi, Kisara, would you two like to be teachers here?" Roy asked.
"Us...?"
"Teachers...?"
Kisara and Seitenshi exchanged surprised glances. They were still in high school themselves.
"It's fine. You'll just be teaching little girls," Roy reassured them.
"Alright then," they agreed.
Roy smiled, then turned to Sona.
"Sona, I'll leave them to you."
"Okay, Tsubaki..." Sona called out.
Tsubaki Shinra entered the room.
"Tsubaki, please show them around and help them get settled."
"Yes, Kaichou." Tsubaki nodded, then looked at Kisara, Seitenshi, and the others.
"Please follow me."
They nodded and left the office with Tsubaki.
——
Once they were alone, Roy quickly took Sona's seat and pulled her onto his lap.
Sona was startled.
"Sona, did you miss me?"
"D-Don't... move..." Sona protested weakly, then gave up when she realized she couldn't escape.
Roy chuckled and proceeded to "discipline" her.
——
Later, Roy decided to focus on researching the system's world-traveling ability.
After all, he had settled the million little girls. Now, it was time to increase their strength.
Contracting a million High-Class Devils hadn't significantly boosted his power.
He had to make them stronger.
His plan was to take them to the world of Konosuba to level up. That world had a comprehensive leveling system and various magic skills.
With that system, they could level up by defeating monsters anywhere.
It was very efficient.
And as they leveled up, they might even be able to Progress to the Ultimate-class without any problem.
But there was one problem: traveling to and from the world of Konosuba was inconvenient.
Without Roy, Rias and the others wouldn't be able to return.
So, he needed to research the teleportation function.
Perhaps he could create a stable portal for easy travel between worlds.
He enlisted the help of Lucoa, Elma, Tohru, Pandora, Athena, and Metis, who were all knowledgeable about magic.
With his Stellar-level power, he should be able to travel between dimensions without relying on the system.
And so—they spent a year researching in Lucoa's [Time Stop Field].
But when they emerged, only a week had passed in the real world.
They had finally figured out how to create a stable portal.
Of course, it required some rare materials—so Roy "borrowed" some from Odin and Indra.
After gathering the necessary materials, they began construction.
——
A month later, after using up all the materials, they finally created five portals.
The coordinates of these portals could be set to any world Roy had visited.
With these portals, the girls could easily visit their original worlds whenever they wanted.
Nezuko—for example—hadn't seen her brother Tanjiro in a long time.
And Sheele, Mine, Leone, Chelsea, and the others also missed Najenda.
Claire, Ellis, and Rinslet also had family in the world of Bladedance of Elementalers.
With these portals, they could easily visit their loved ones whenever they wanted.
The girls were overjoyed when they learned about the portals.
"Thank you, Roy-onii-chan!" Nezuko exclaimed, giving him a kiss. She had been wanting to see Tanjiro for a while now.
"Alright, everyone, go visit your families if you want," Roy said with a smile, patting Nezuko's head.
With their current strength, he wasn't worried about their safety.
The girls excitedly went to their respective worlds.
"Alright, it's our turn to go now," Roy said, taking Enju, Kayo, Tina, Kohina, and Kisara with him.
They were going to the world of Konosuba.
It had been several months since Rias and the others went there. He wondered how they were doing and if they had defeated the Demon King yet.
The portal opened in the mansion he had bought in Axel.
——
Rias and the others immediately sensed the spatial distortion.
"Roy?" Rias was surprised to see him emerge from a portal.
He had always appeared and disappeared instantly before.
"Yo, Rias, Akeno!" Roy greeted them with a wave.
"Roy, what's going on?" Rias asked, confused about the portal.
"This is a portal I created. With this, you can freely travel between the two worlds," Roy explained.
"That's amazing!" Rias exclaimed, impressed.
Saeko, Akeno, Koneko, and the others were also surprised. They hadn't expected Roy to create an interdimensional portal.
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