Okay, I imagine that since the age is, as a rough guide, multiplied by 5 to get their Mazoku age, I tried my best to accurately age them. Wolfram would be 7 and Anissina/Gwendal would be around 16 in human years here.

The Firework Machine

"Come on Gwendal! It will only take a minute! I promise!" A young Anissina begged the dark gray haired eighty three year old boy that was busy reading some long book about boring things she didn't care about.

"I don't have time to help you right now. Besides, I'm watching Wolfram." Gwendal shrugged her off. Upon hearing his name, the little prince looked up from his toys at the two older kids. The thirty six year old Wolfram glared at his older brother at the accusation of needing to be monitored and made an indignant sound. He stood up and walked over to them.

"I want to try it this time!" Wolfram yanked on Anissina's dress. She looked down at the green eyed kid with a grin.

"No." Gwendal shut down any hope Anissina had for testing out her new invention.

"Hey! I can do it! I can be a grown up and use the machine like you!" Wolfram defended.

"He will be perfectly safe with me! I swear it!" Anissina tried to convince Gwendal to let her use the little brat as her test monkey. Gwendal gave in out of sheer annoyance and waved them off.

"Come one, little lord brat, let's go."

The evening courtyard was nearly empty aside from the inventor and her assistant. A couple maids looked wearily at the two, but continued their yard work while giving a cautious glance every few seconds. In the center of the area on a small patch of dirt sat a large, metal contraption.

"Okay, so just spin that long crank on the side." Anissina told the little prince, pointing to the square shaped machine, "It'll start sparking for a bit, but don't run away, just keep at it."

"I'm not scared of something so stupid!"

"Ah, of course you're not." Anissina humored the boy while standing about ten feet away, notebook and pen in hand to write down the results.

"Um, Lady von Karbelnikoff?" One of the maids worked up the courage to speak to the inventor, "What is it supposed to do?"

"Well," Anissina began, eye lighting up, "It makes colorful fire! Kind of like multi-colored sparks in the air! It should look pretty!"

"Um," The maid's nervousness grew, "Could it set things on fire?"

"There is always the chance, but what is risk without reward! Or is it the other way around. . ."

"Oh dear." The maid scurried back to her friend and the two ran inside.

"Are you ready?" Anissina paid no mind to the servants and addressed the young boy who had been growing impatient.

"Of course I am!" Wolfram huffed.

"Alright, go!"

Wolfram began cranking the lever and the machine let out a low hum which slowly got louder. Sparks began to fly out the bottom instead of the funnel at the top.

"Uh. . ." Anissina scribbled down some notes, "Try spinning it the other way."

Wolfram complied with her request. A loud clunking sound was made. Anissina began to get nervous when the noise continued.

"Uh, Wolfram step away fr-" She was interrupted by a deafening smash followed by an explosion. Anissina screamed and shielded her eyes from flying debris. When the air cleared, she ran over to the unconscious boy.

"Hey!" She shook him and he let out a pained groan.

"What happened!?" Gwendal ran out, almost shoving Anissina out of the way.

"Gwendal?" Wolfram coughed violently. Gwendal gave Anissina a dark glare.

"I'm so sorry. I had no idea. . ." She trailed off.

"I don't think Wolfram should help you anymore."

"I. . ." She began, "You're right."