As Aether and Paimon approached Yoimiya's workshop, the faint crackle of fireworks and the scent of gunpowder greeted them. Yoimiya was busy tinkering with what appeared to be a vibrant new firework design. However, something about this one seemed different—it was adorned with a unique insignia resembling a lightning bolt and a hat icon.

"Yoimiya!" Paimon called out as they entered. "Whatcha working on this time?"

Yoimiya jolted slightly at their arrival, quickly trying to shield the blueprint from view. "Oh, Traveler! Paimon! You caught me off guard!" she said, a hint of nervousness in her voice.

Aether tilted his head, noticing her unusual reaction. "Something wrong?"

Paimon floated closer, narrowing her eyes suspiciously. "You're acting weird, Yoimiya. What's with the firework? And why does it have a hat and lightning bolt? Is this some kind of secret project?"

Yoimiya hesitated, her cheeks turning a faint shade of pink. "N-No! It's not a secret or anything. It's just... well, something inspired me recently, and I thought I'd try making something fun and different!"

Paimon crossed her arms. "Inspired by what? Come on, spill it! Paimon's super curious now!"

Realizing there was no way to dodge the question, Yoimiya sighed and scratched the back of her head, looking flustered. "Okay, fine! There's this person... from another world. His name is Ash Ketchum. I heard some incredible stories about him, and I thought he seemed really cool, you know? Brave, kind, and always striving to be the best at what he does. So I... might have gotten a bit carried away and designed a firework inspired by him."

Aether blinked in surprise, while Paimon looked completely baffled. "Ash Ketchum? Who's that? Paimon's never heard of him!"

Yoimiya laughed nervously. "He's not from Teyvat, so it's no surprise you haven't. But... he's someone I really admire. It's silly, I know, but I thought, why not celebrate someone amazing in my own way?"

Paimon squinted at her, a mischievous grin forming. "Ohhh, Paimon gets it now! You've got a crush on this Ash guy, don't you?"

Yoimiya's blush deepened as she waved her hands frantically. "What? No! It's not like that! I just think he's really cool, that's all!"

Aether smirked slightly. "Well, your 'inspiration' definitely seems to be coming from a special place."

Yoimiya groaned, hiding her face behind her hands. "Ugh, you two are impossible!"

Paimon giggled. "Don't worry, Yoimiya! If this Ash guy is as cool as you say, Paimon's sure he'd love the firework!"

Later that night, Aether and Paimon stood atop a hill overlooking the picturesque city. The air was filled with a faint hum of anticipation as Yoimiya prepared to launch her new creation.

Paimon hovered excitedly. "Paimon's so curious about how this firework will turn out! Do you think it'll really look like that Ash guy Yoimiya mentioned?"

Aether gave a small smile. "Knowing Yoimiya, it's bound to be something impressive. She always puts her heart into her work."

A few moments later, Yoimiya's voice echoed from below. "Alright, everyone! Get ready for something truly spectacular!"

With a brilliant spark, the firework shot into the sky, its trail of light illuminating the night. Then, with a resounding boom, the dark canvas of the heavens was painted with an intricate display.

First, the silhouette of a young man wearing a cap appeared, his determined expression captured perfectly in the shimmering lights. The crowd below gasped in awe as the firework shifted, this time forming the outline of a small, energetic creature with long ears and a lightning bolt-shaped tail—Pikachu. The electric-themed sparkles made it look as though the Pikachu was charging up an attack.

"Wow!" Paimon exclaimed, her eyes wide with wonder. "That's him, right? That's Ash and Pikachu! Paimon has to admit, Yoimiya outdid herself!"

Aether nodded, equally impressed. "She really captured their spirit. It's incredible."

Yoimiya stood nearby, gazing up at her work with a satisfied smile. "Perfect. Just how I imagined it. I hope it reaches him, wherever he is."

As the firework faded, the lingering sparks left a warm glow in the sky, as though Ash and Pikachu's presence had been etched into the stars.

Paimon floated closer to Yoimiya, her mischievous grin returning. "If this doesn't show how much you admire him, Paimon doesn't know what will!"

Yoimiya laughed, her cheeks tinged with a slight blush. "It's not just admiration—it's inspiration. People like him remind me why I love what I do: bringing joy and lighting up the world, even if it's just for a moment."

Aether smiled softly. "I think he'd be proud if he saw this."

Yoimiya nodded, her eyes sparkling like the fireworks she created. "Maybe someday, he will."