Chapter 299: Parallel World Slip

Once Shiro's anger subsided, the temperature inside the house went back to normal.

"That's the first time I saw you angry."

Her ears twitched slightly as she said so.

"That thought's disgusting. I knew how degenerate humans could go, but hearing it personally disgusts me."

Dropping the topic into the trash bin, they went into a more normal one.

"How is everyone?"

"Nothing much changed. After the others knew they could return to this world, their actions are more relaxed. As for the other members, they are quite busy with their things."

She told him how Madoka hanged around with Mamika. For the two girls whose ideals are the same, they became more of friends than a junior and senior. There was also the other creations who spent time with their creators.

"As for Kuroneko, she went to a convention. Part of it was to experience how it felt to be a mangaka, or so she says."

"It's her usual, then. She wanted to become a mangaka even in her world."

While they are talking, the door opened. Kuroneko entered as she kept reading what seemed like a light novel. Though, she was engrossed to it. Moments later, she noticed his presence.

"S-shiro? You're already back!"

The book fell naturally to her shadow before being devoured by it. Shiro could see what it was but chose not to as a form of courtesy.

"Yeah. I settled everything back there."

"Azur Lane? I understand." She paused before asking something, "You are not the Shikikan from the game, right?"

"Please forget everything about that one. Those game developers needs to pay for this."

Hearing this, she let out a small mumble, "That's good."

"How was the convention?"

"It went well, actually. People recognized me whenever I came across them. But..."

A look of determination flashed in her eyes.

"I prefer to sell my original works instead."

Way before she and 'Kyousuke' was a thing, Kuroneko was already an aspiring mangaka. Although, her works was not sold much and the editors she reached out did not respond. Overall, it was a failure.

"Actually, I want to see it. Can I?"

"Well..."

Kuroneko hesitated briefly before taking out a manga from her [Shadow Storage]. For some reason, her [Dimensional Storage] fused with [Ashborn's Inheritance] which resulted in the creation of this skill. It's not like she complained, though. The way it works is cool for her.

"Hm? Isn't this..."

"That's right! Y-you are my reference when I came up with it!"

In the cover, a slightly familiar face was seen by him. He wielded dual guns with one of his arms has its sleeves off—revealing its mechanical property. A destroyed building is the backdrop, further emphasizing its dark theme.

"I see, I see. I'm honored." Shiro said in a teasing tone.

This, however, was countered by a skill Kuroneko learned from Kal'tsit—acting.

"J-just so you know, I planned to ask for your permission before selling it!"

Unfortunately for her, she could not keep herself as good as Kal'tsit.

"Alright. Then, when would you like to use me as a reference? I should be quite free these days."

"L-let's talk about it later!"

Without hesitation, she went straight to her room upstairs. After everything happened, he saw Kal'tsit deadpan at him.

"For some reason, you are more lively."

"Consider me as a special Shiro you'll only see rarely."

Shiro let out a playful smile. Coupled with his extremely good mood, it made him more charming at this moment.

Undeniably, this sent Kal'tsit an inexplicable emotion.

*****

The next day.

"The chat group, is it? I could replicate that invitation."

Every chat group members gathered in front of Shiro's house. The creations have returned to their respective worlds earlier, leaving them and the two creations into this world.

Surprisingly, a similar smartphone came from Altair's hand. It soon turned into a fleeting mirage, but they could see that a new member has joined the chat group.

"You made something mysterious. Even [Holopsicon] could not see its depths..."

"The matter requires it to be that intrinsic."

Hearing that term, everyone knew what she was pertaining about. Yesterday, Shiro finally told them the memories he could remember from the trip to the future. In turn, it left them wary for the future. If Shiro had not left out his deduced end—to fight it and disappear from this world—they would have worried more.

"Herrschers and superheroes... The worlds outside ours are interesting."

"We'll get to see them in the future." Shiro replied.

[Return command confirmed.]

[20... 19... 18...]

""'Thank you for the help, everyone."""

The member expressed their gratitude to the creators. they are the ones that has the power and made the final confrontation possible. Admittedly, they helped a lot in this mission.

"No, don't even think about it. Your contributions are much important than ours." Matsubara humbly said. "We might be dead at this point without your help, so—"

"""Thanks for everything."""

Coincidentally, their parting turned into an exchange of gratitude.

"Everything will be fine as long as you treat your creations with care it deserves."

"It's our responsibility... for our created worlds to exist meaningfully."

At this point, Souta acknowledged the regrets and guilt he felt towards himself. It further helped when the two who caused it didn't mind it that deeply. A normal high-school student will definitely hesitate to dive into a mess that could ruin his life. As for Shiro and Altair, they are the irregulars who did not care about the world's opinions about them.

"Farewell."

"It's the time of partings, but fret not. When there are time, we will be visiting this world again."

Kal'tsit and Kuroneko said their goodbyes as well.

"She's back to her usual self... I wonder what'll happen if she meets my sister."

"Please don't, Touka-nee." Shinji wryly replied. "I can already imagine the outcome."

"Ruri-san... She changed after the fight." Madoka added.

"I also did..."

When Shinji woke up, he was surprised to 'remember' a killing blow—a technique—that he did not know before. It is a strange technique that imbued five weapon concepts, much similar to Shiro's Fenrir. Though, the former is more specialized to deal effective damage.

"Well, this will be it for now. Stay well, everyone."

Just as the timer was about to run out, Shiro added, "I'll be contacting Meteora through the chat group."

Hum.

A bright white light enveloped all of them before they silently disappeared.

*****

"I'm finally back."

Shiro stretched his body a bit. Truly, his journey this time led to many occurrences. After all, he headed to his home world in a haste to save it. There's also the matter regarding the future that he discovered during this mission.

When he opened his eyes again, he sensed something wrong.

"Huh?"

His [Six Eyes] gave him a coverage of a thousand kilometers passively. With that, he saw the area around him. Instead of seeing the bustling Kazimierz, he saw nothing but ruins. It reminded him of his world before he fixed everything—that included the dead META KANSENs as well as the other dead people from the first timeline. He designed it so that they would 'reincarnate' on the repaired world.

"Ah, I see. I slipped."

Shiro realized what happened to him.

"I accidentally came to a parallel world."

He descended into the world of Seaborns.

******

A/N: For those wondering, Shiro came into the Integrated Strategies world (2nd-3rd ending). In Arknights, it is a parallel world line that is headed towards Terra's destruction. To make things simple, a certain character (Skadi) failed to control the Seaborn god will inside her, which turned her into their "leader". Those monsters form the sea reached out to the land like a zerg swarm, leading to the extinction of civilization. It is kind of similar to the April Fools Ritsuka's ruined world. It is a version of Ritsuka who failed to protect Chaldea as well as the Panhuman history (do correct me if I'm wrong).

As for Kuroneko's backstory, it was included in the "what-if" route where that bastard Kyousuke ends up with her. In this fic, that won't happen. The bastard does not deserve Kuroneko. It is also the general response I have seen from most people who watched/read oreimo.

Yes, it has a manga and light novel called "Ore no Kouhai ga Konna ni Kawaii Wake ga nai" which translates to "My junior can't be this cute!" (See the difference?)

Onwards to the 300th chapter~!