Safi jumped on her parents' bed early in the morning, eager for an upgrade. "Mom? Can we upgrade me now!?" she asked.

"Nyaaan," Nekra replied, trying to stretch awake, but found herself serving as Yuki's hug pillow.

"Sure," Nekra replied as she slipped out of Yuki's arms with the grace of a cat.

"Yay!" Safi cheered.

"Shh! Do you want to wake up Auntie Milim and Momma Yuki?" Nekra asked.

Safi shook her head no.

"Let's go then," Nekra said, grabbing Safi's surprisingly warm hand as they teleported out to her main body.

"So, what do you want to do first?" Nekra asked.

"Magic muscle is good, but under a lot of pressure, it will snap," Safi said.

"Nya!? It's not supposed to. It's made from dragon hide," Nekra said.

"How about Strand Crystal tissue?" Safi suggested.

"Where are we going to make room for that?" Nekra asked.

Safi pulled open the panel.

"Ah, if we replace the hydraulics with narrower pistons made with sturdier metal, then we should have room nya," Nekra said.

Safi nodded.

"How about Adamantium?" Safi asked.

"I was thinking Orichalcum nya," Nekra said.

"Then we can have magic going through it, genius!" Safi responds as Nekra began to remove the massive hydraulic pistons.

This story originates from a different website. Ensure the author gets the support they deserve by reading it there.

Suddenly, fluid was launching out of the system. The sound of burning could be heard coming from Nekra as the very angry hydraulic fluid ate away at her clothes and tried to burn her skin.

"Nya! I forgot to drain the system first," Nekra shouts only lightly disturbed as the fluid was slowly eating away at her clothes.

“That stuff is dangerous.” Safi mutters

“Nya of course! I purposely designed it so that way if someone had ever cut your hydraulic systems while in battle it would cripple them for it.” Nekra says with a rather jovial tone.

==================

Yuki woke up in bed to find herself cuddling something soft, but it didn't have Nekra's body heat.

"Hmm? Where did Nekra go?" Yuki asked, opening her eyes to see herself hugging a body pillow of Nekra wearing her white dress with her normal charming smile.

Yuki turned it around to see the other side, which was the exact same, but rather than Nekra smiling, it showed her blushing. Head facing downwards yet here eyes were looking up at her.

"Cute!" Yuki exclaimed as she started to get a nosebleed.

====================

"Why do I feel uncomfortable..." Nekra said as she bolted in a new piston.

"I don't know," Safi replied as she worked on the computer components.

"Are you sure this will work, Mom?" Safi asked.

"Of course nya. It's a magical quantum computer; it uses magic for cooling nya," Nekra said.

"Why am I installing the inferior computer next to it then?" Safi asked.

"Because there are formations that can remove magicules from the air," Nekra explained as she pulled out a hammer and hit the stick piston into place while Safi was unaware.(this hurts my soul)

"Then what about the perpetual magic engines?" Safi asked.

"Nya? That can be solved by having an Arc reactor installed somewhere for an emergency backup," Nekra said as she accidentally punctured a hose with her claws.

"Oops nya," Nekra said as she quickly replaced the hose to the piston.

"Hey, Mom, what is this thing?" Safi asked.

"That's a force field generator nya," Nekra said, looking up from the leg access panel.

"Where should I install this?" Safi asked.

"Around the core is a safe bet nya. Although we may layer your titanium body with a stronger metal at the solid places; you can never risk your core nya?" Nekra said.

"But aren't I constantly backing up to the dungeon computer?" Safi asked.

"You are nya, but only while you are in the dungeon nya," Nekra said, closing the panel before opening the overhead one to work on the upper legs.

===================

"Hey Yuki? Where is Nekra?" Milim asked as she opened the bedroom door, seeing Yuki making out with a pillow.

"Uhhh, I don't know, probably with our daughter," Yuki said, hiding the Nekra body pillow behind her.

"Can't you see her with that anime-watching device?" Milim asked.

"Ah, great idea, I will be right out!" Yuki said as she quickly stuffed the Nekra body pillow under the bed before heading out after Milim.

Out at the computer.

"So she's working on Safi's body with Safi," Yuki said, while Milim's battle aura seemed to be spreading, though Yuki didn't even notice it.

"Hey, hey? Can I fight that dragon?" Milim asked, pointing at the screen.

"..." Yuki of course was watching the demonlord rather sceptically

“What?” Milim asks

“Why did you not want to fight our daughter lastnight?” Yuki asks

“Because we were watching anime.” Milim say switch a simple shrug.

==============

Meanwhile, working on installing the motherboard, Safi suddenly shuddered.

"Mom, I feel like I'm in danger!" Safi shouted.

"It's probably nothing, dear nya," Nekra said as she finished up the third of the four legs before she had to do the tail and wings.