Fairy Tail: My Magic is a Yu-Gi-Oh! Deck — Chapter 202

Chapter 202: Natsu’s Demonic Transformation

The Demon King’s aura swirled like a vortex of black mist, funneling rapidly back into Mirajane’s body. As the last wisps vanished, her usually bright eyes settled into a fathomless, pitch-black abyss.

“How does it feel?” Chase asked, a playful grin tugging at his lips.

“It’s a little different from my previous Take Over forms. This power…” Mira looked down, slowly clenching her newly formed demonic fists. The sheer density of the magic crackled between her fingers.

When she spoke, her typically gentle, melodic voice was gone. In its place was a rich, resonant timbre that carried the invisible, crushing pressure of a ruler.

Feeling the relentless surge of demonic energy coursing through her veins, Demon Mira acted on a sudden impulse. She raised a clawed hand, pointing a single finger toward Happy, who was currently standing on the table opposite her. Words couldn’t adequately describe the sheer scale of her new state, so she opted for a practical demonstration.

A complex, arcane purple magic circle flared to life in the air, inscribed with ancient, glowing runes. A dark halo pulsed from Mira’s fingertip, rippling outward and distorting the very fabric of space before crashing directly into a bewildered Happy.

After a brief moment of eerie calm, the Exceed’s body began to warp. His signature blue fur rapidly darkened into a sleek, midnight black. Sharp, armored barbs erupted from the tip of his long tail. His unique wings snapped open, entirely out of his control—but they were no longer the snowy white of an angel. Instead, they stretched out as pitch-black bat wings, lined with jagged bone spurs.

Happy let out a startled yelp, patting his own face as he registered the drastic changes. Seeing the stunned expressions of Natsu, Lucy, and the rest of the guild, he frantically flapped his new demonic wings. He zipped over to the nearest window, using the glass reflection to inspect his new look.

Sleek black armor, razor-sharp claws, and glowing crimson eyes stared back at him. He looked like a miniature messenger from hell.

“So… so cool! Is this really me?!” Happy’s shock instantly morphed into overwhelming excitement. He did a mid-air loop and flew right back to Natsu and Lucy, aggressively flexing his bat wings and swishing his barbed tail. “Natsu! Lucy! Look at me! I’ve totally got the vibe of a top-tier powerhouse now!”

Since demonic transformation didn’t just alter appearances but also provided a slight boost to physical strength—a fact well-documented by the monsters back in the Boundary Forest—Happy was currently overflowing with unearned confidence.

“Ohhhh! That is so cool!” Natsu leaned in, his eyes practically sparkling with golden stars of pure envy.

“Demonization? Mira took over the Demon King and can actually do something like this?!” Lucy gasped. Even though she had just witnessed the Demon King’s overwhelming power firsthand, seeing their cute little mascot turn into a creature of the abyss was still hard to process.

The rest of the guild quickly swarmed the table, their eyes wide with curiosity as they poked and prodded at Demon Happy. Thanks to Lucy’s big mouth, most of them already knew the gist of what had happened at the demon village. Combined with the spectacle of Mira absorbing the magic egg, it wasn’t hard to put the pieces together.

“That’s right, Lucy. I can turn any creature enveloped by my aura into a demon,” Demon Mira replied, her beautiful, dark eyes narrowing in amusement. She raised both arms high above her head. “Since the first experiment was such a resounding success, let’s have everyone experience it~”

As her deep voice echoed through the hall, an even denser, ink-black halo exploded outward, sweeping across the entire guild.

Happy’s jaw dropped. ‘Wait! I was just an experiment?!’

Knowing this was just Mira playing around, and harboring a healthy dose of curiosity about their own potential demon forms, not a single guild member bothered to put up their magical defenses. They stood perfectly still, letting the wave of dark light wash over them.

Whoosh! Whoosh! Whoosh!

Arcane purple magic circles bloomed across the floorboards like a field of dark lotuses. With every flash of light, another Fairy Tail mage morphed into a creature of darkness. Within seconds, the guild hall was packed shoulder-to-shoulder with terrifying, brutal-looking fiends.

Fairy Tail had essentially transformed into a Tartaros branch office.

“Man! I can finally take over demon power too! A real man embraces the darkness!” Demon Elfman roared, flexing his newly spiked biceps.

“This is actually incredible. I can clearly feel my raw physical strength spiking,” Gray muttered, inspecting the complex black demonic markings crawling up his bare arms.

“Matching skin! Juvia has matching skin with Gray-sama!” Demon Juvia squealed, her eyes forming massive, lovesick hearts as she practically tackled him.

“Well, yeah, the power is nice, but… Mira, isn’t this outfit way too revealing?!” Demon Levy squeaked, her face burning bright red as she desperately crossed her arms over her significantly reduced top.

Jet and Droy, both sporting their own monstrous new looks, naturally didn’t miss the opportunity to hover around her, aggressively muttering about how incredibly cute she looked.

Of course, while some had extreme reactions, others couldn’t care less. Kana was still chugging booze straight from the barrel, her demonic horns barely getting in the way. Gajeel was crouched in a corner, aggressively crunching on a piece of scrap iron with his newly jagged teeth. Nobb was still loitering aimlessly in front of the request board.

As for Éclair and Momon, they remained completely unchanged. Whether it was the divine protection of the Phoenix warding off the demonic magic, or simply Mira giving the newcomers special treatment, they were spared. Given Mira’s absolute control over her new Take Over, the latter was far more likely.

Regardless, Mira’s little stunt had thrown a bucket of gasoline onto the already chaotic guild atmosphere. Everyone was shouting over each other, and a few of the more hot-tempered members had already started throwing demonic punches, eager to test their new specs.

Normally, Natsu would be the absolute center of a brawl like this. But right now, he had zero interest in throwing hands. Instead, he stomped over to the bar, glaring up at Mira.

“Hey! Mira! What’s the big idea?! Why didn’t you turn me into a super cool demon?!”

Hearing his indignant shouting, Lucy finally tore her attention away from her own dark, gothic attire. “Wait, yeah… why is Natsu exactly the same?”

“Aye~! It must be because Natsu didn’t take a shower yesterday! The magic was disgusted!” Demon Happy snickered, never missing a chance to throw his best friend under the bus.

The surrounding guild members immediately burst into a chorus of heartless laughter, pointing and mocking the Dragon Slayer.

“That’s strange. I definitely cast the magic on Natsu. According to the feedback from my magic power, the demonization process should have been a complete success…” Demon Mira rested her chin on her hand, her delicate eyebrows knitting together in genuine confusion.

She obviously wouldn’t exclude Natsu just because of his hygiene habits—not that she even knew about them in the first place.

“I don’t care about the feedback! Turn me right now! Do it now!!” Natsu’s notoriously short temper flared. He leaped over the counter, grabbed Mira by the collar of her dress, and began frantically shaking her back and forth.

“You’re being a little noisy, Natsu.” Mira’s lips curved upward, forming an incredibly gentle, closed-eye smile.

A bone-chilling cold instantly shot down Natsu’s spine. Traumatic childhood memories of the violent, terrifying ‘Demon’ Mirajane flooded his brain, snapping him back to reality. He suddenly remembered that the woman he was currently manhandling was not the sweet barmaid, but a Demon King on par with Erza’s wrath!

The frantic shouting stopped on a dime. The hands gripping her collar instantly let go and dropped to his sides. Natsu stood at perfect attention, his eyes wide, clear, and entirely innocent.

“Aye~!” Natsu squeaked, doing a flawless impression of Happy.

“It’s probably just because she just finished the Take Over. Her control over the new ability isn’t entirely stable yet,” Chase said, walking over with a casual, measured pace to offer a judgment.

The real reason, of course, was something entirely different. Natsu was E.N.D.—Etherious Natsu Dragneel. He was already a demon from the Book of Zeref. You couldn’t ‘demonize’ something that was fundamentally already a demon at its core.

However, that truth was far too heavy and unbelievable to drop on the guild right now. Revealing Natsu’s true identity at this stage would only cause unnecessary chaos, so Chase smoothly provided a plausible excuse to gloss over the anomaly.

“Indeed. Besides, you can undo the effect simply by flaring your magic power like this,” Erza said, nodding in agreement.

She let out a sharp breath, her magical aura flaring outward. The demonic features clinging to her body rapidly dissolved, peeling away like burnt paper until she was back in her standard armor.

“Oh, so that’s how it works! Then I’ll just— Huh?!” Lucy took a deep breath, mimicking Erza’s stance, and confidently pushed her magic power outward.

The result, however, was painfully underwhelming. Her face flushed beet red from the sheer effort, but she only managed to clear the dark scales from her forearms. The rest of her gothic demon attire remained stubbornly attached.

She wasn’t the only one. Other guild members who tried to forcefully purge the magic found themselves hitting similar walls. It wasn’t nearly as easy as Erza made it look. Clearly, only mages of S-Class caliber or higher possessed the raw magical density required to completely override Demon Mira’s influence!

Seeing her friends struggling and sweating, Mira let out an airy laugh and voluntarily snapped her fingers, dispelling the lingering magic from everyone in the room and allowing the guild’s rowdy atmosphere to return to its normal, human baseline.