Hyperdimension Neptunia belongs to Compile Heart, Idea Factory, Sega and whomever else worked on it.

Just a short little thing that came to me.

"You know," Uzume spoke up one day while she, Neptune and Nepgear were playing some games together, "there's one thing I don't really get." The other two looked at her in confusion. "I get that I could transform in Zero Dimension and Heart Dimension because it was my own Share Crystal and that there are some people still alive from when I was the CPU, but... How come I have more shares than I should?"

"Huh?" Both Neptune and Nepgear gave her a confused look.

"Yeah, it's faint, but it's like..." Uzume tapped her chin. "It's like I'm still the CPU, but I know that I'm not, it's weird."

"That is weird." Nepgear admitted. "Hmm... Maybe more people remembered you than you think?"

"Maybe." Uzume nodded and went back to playing, not thinking about it.

At the door, Histoire looked at Uzume, Neptune and Nepgear and had a sad smile on her face before turning and flying away silently.

*Flashback*

Histoire watched with tremendous sadness as Uzume sealed herself away to protect everyone. "Uzume..." She knew that she would have to alter everyone's memories, including her own, so that no one would remember Uzume and that would keep anyone from trying to find her and destroy her console to destroy the "witch". "It's not fair... Uzume did nothing wrong." She whispered and looked at a copy of Uzume's console and ran a hand over it. "This is far more powerful than the consoles in Leanbox, Lastation and Lowee..." Planeptune consoles tended to be, since the nation was so advanced.

"...Uzume," a determined look came to Histoire's face, "I won't let people stop putting faith in you. Even if it's faint, I won't let you die because people forgot you."

She knew it wasn't her job to do this, but she wouldn't let the world forget the nice CPU that gave her the awesome hat on her head!

Even if no one would remember Uzume's name, even if no one would remember who she really was, Histoire knew that she could do something to keep Uzume alive.

*End Flashback*

Histoire floated into Nepgear and Neptune's room and floated over to the desk where Neptune's cellphone was charging and smiled. "Every smart device in Gamindustri runs on your console's original Operating System, Uzume."

Sure, even cell phones of the modern age were far more advanced now than anything in Uzume's time and phones of the modern era could store entire game libraries on them.

But the core of all smart devices was based on the operating system that Uzume had developed almost a century ago.

"I couldn't let you die, I had your console used as the base for all future cell phones." Histoire smiled, glad that she had done so.

She never felt the need to tell anyone about it. Not because she was embarrassed about it, but rather, it wasn't something anyone needed to know.

If they asked, she'd tell them...

...After explaining everything in great detail for three days.

She had a reputation to uphold after all.

So, if you're wondering, yes, the Sega Dreamcast's OS is actually the basis for all smart devices. Whenever you play a game on your phone or tablet, or even use them, you are actually using a mini-Dreamcast. Sega really was ahead of the curve in envisioning technology. The reason Vert wants to steal Nepgear is actually related to the Dreamcast as well. The team that worked on the Dreamcast were actually engineers from Microsoft. When the Dreamcast failed, they went back to Microsoft and created the OG XBox, which is basically Dreamcast 1.5

Why do you think the OG XBox and Dreamcast have the same controller, internet functionality and lack of a built-in DVD player?