Leon Greyrat: The Second Son - Mushoku Tensei OC

Chapter 18 - Return to Roa

— Eris Boreas Greyrat —

"What are the three main things that affect gas pressure?" Rudeus asked.

"Umm... temperature... the amount of gas... and the... space it's in?" Sylphy answered.

"Yep! Good job," Leon exclaimed, smiling at her.

Just like he did with me... tsk.

Not that I cared, though!

"So, if you know that, what do you think would create the most pressure?" Leon asked.

"Umm... a lot of gas in a small space? Oh! And making it hot!" Sylphy answered.

The two brothers nodded their heads.

"Yep! And what do you think happens when you hold gas at high pressure before being released? Oh, Eris. You know this one!" Leon said.

Scrunching my eyebrows, I thought back to my lessons at home.

Usually, with all this 'science' stuff, I just let it go in through one ear and out the other.

It was pretty boring after all.

But I remember listening to this 'pressure' stuff pretty seriously.

And that was because when he did what he described, it would cause-

"An explosion!" I said, pointing my chin up.

He simply nodded his head proudly.

"Yep. Now, how about we try it?" he said, extending his hand. "Rudy? Do you want to do it with me?"

"Sure. Let's see who can make a bigger shockwave!" Rudy answered.

Leon shook his head. "No. We probably shouldn't. What if we wake up Norn and Aisha?"

"Ah. That's true..."

"Kids! Come and eat!" a shout rang from the house.

Turning back, I saw Leon's mothers, Lilia and Zenith, standing in the garden with a platter of sandwiches and drinks.

To think they had just given birth a week ago... well, I knew how good Leon and Rudeus' healing magic was, so it was to be expected.

"I guess the demonstration will have to wait. Let's get some food," Leon said, walking toward them.

Following behind him, I thought back to last night, when I shared a conversation with the woman.

Zenith, that is.

She was... weird, but not in a bad way.

She was warm, like a comfortable fireplace, and I could tell how much she loved, and how proud she was, of her two kids... even without her constantly saying it.

It was... much different, from Mother.

And like Paul, she also liked to tease me, but it wasn't annoying, rather, it just made me embarrassed.

Truly, truly odd.

Anyway, when I went downstairs to use the latrine, I was about to return to my room before she called me over to sit next to her.

I was confused, at first, but then I found out why she wanted to talk to me.

Surprisingly, she was a noble too, or at least, she used to be.

And even more surprisingly, her position had been equal to mine.

No, considering that Father was only the mayor of Roa, her position would have been higher.