Heroic Spirit Deck in Yu-Gi-Oh!

A streak across the sky—the meteor arrow that tore through the beast horde—made Paradox tremble from afar.

"Lord Paradox, is that...?" Byakuya's voice was heavy with unease.

Paradox's tone held a faint tremor. "That power... it is indeed the power of a Heroic Spirit. it seems your information was correct. Not only have we traveled through time…"

Faced with undeniable evidence, Paradox recalled the fleeting image of a young girl who had passed him by in the time tunnel.

"So, interference between travelers was inevitable. Is this coincidence, or is it fate…?"

(***)

"Waaaaahhhhh~!" Hoshino's jaw dropped so wide it resembled a malfunctioning recorder stuck on an endless loop.

Twin swords danced through the air, cutting down monsters. Musashi landed gracefully in front of Hoshino and the others. "Master, what's wrong? Did you eat something bad?"

Illya scratched her cheek, looking awkward. "Um, I think she's just... overwhelmed."

"A sugar mommy! A super-rich sugar mommy! Please adopt me! I'll do anything!" Hoshino, staring at the mountain of Saint Quartz before her, was so overwhelmed she nearly clung to her older self's slender thighs, ready to become a human leg ornament.

Hoshino–Sensei chuckled at her younger self's antics. "It's all yours to begin with. Don't forget:What's mine is yours."

"What's… yours is mine?" Hoshino repeated, her disbelief evident. Was this person an angel in disguise?

"In any case, Chiyuki-chan, use this Saint Quartz to build a deck that truly belongs to you!"

Hoshino–Sensei activated her Duel Disk, slapping down five cards. Towering warriors materialized, their roars forming a shield that repelled the incoming monsters.

"Let them witness the power of money!"

"Yes, Hoshino-sensei!"

[10-Pull Summon]!!

[10-Pull Summon]!!

[10-Pull Summon]!!

...

Countless golden flashes broke through the odds, sheer repetition bending fate to their will.

Money really can rewrite destiny!

"Go forth, Heroic Spirits who transcend time and space! This is our war for the future—a battle to reclaim the world!"

Hoshino-sensei flung newly drawn cards onto her Duel Disk. A fearsome aura shook the battlefield, echoing across the war-torn grounds.

Money really can solve anything.

"Hahahahahaha!" ×4

"Summon—Jeanne d'Arc (Alter)!"

"Hahaha! Gather all the world's evils here! dragons of the skies, heed my call!"

Emerging from the flames of vengeance, Jeanne Alter raised her sword high. The dragons circling in the sky immediately turned against their former allies, tearing them apart.

"Summon—Edmond Dantès!"

"Hahaha! The path I tread is revenge—burn bright!"

Darting through the monster horde with unimaginable speed, the Count of Monte Cristo left nothing but destruction in his wake, each strike sending enemies to the depths of hell.

"Summon—Ozymandias!"

"Hahahahaha! Bow before the Pharaoh! The brilliance you see is my glory!"

Ozymandias rose into the sky, unleashing the scorching heat of the sun. His radiance burned through the horde, clearing the battlefield.

The once-darkened skies, illuminated briefly by Arash's meteor arrow, now shone brilliantly as Ozymandias's light pushed back the monsters.

"Summon—Gilgamesh!"

"Hahahahaha! Not bad, mongrels! With two sources of mana at my disposal, I shall grant you the privilege of witnessing something extraordinary!"

Gilgamesh, the King of Heroes, emerged amidst laughter, his piercing gaze locking onto Paradox in the distance.

"Judgment is upon you. Behold the crushing might of my Sword of Rupture."

Gripping the legendary weapon that predated heaven and earth, Gilgamesh unleashed its overwhelming power.

"—Enuma Elish!!"

A devastating wave of energy tore through the sky, creating a rift in space itself. The sheer force obliterated the horde, scattering monsters in all directions. The attack surged far beyond the battlefield, its path aimed directly at Paradox's location.

"This isn't good, Lord Paradox! They've discovered our position!" Byakuya shouted, his voice filled with urgency.

Removing his mask, Paradox activated his Duel Disk. "It seems I've underestimated you, Hoshino Chiyuki. But let's see how long your resolve lasts."

.

..

...

"What kind of power is this?!"

Inside the dormitory, students who had been watching the battle were left speechless.

"Is this really Hoshino-sensei's strength? It's terrifying!"

The quartet of Heroic Spirits had unleashed attacks that completely redefined the students' understanding of power.

"To fight thousands of monsters alone… Is that even human?"

"Stop spouting nonsense! Hoshino-sensei is Hoshino-sensei! No matter how strong she is, she's using her strength to protect us!"

With 70-80% of the monster horde destroyed, the remaining creatures no longer posed the same overwhelming threat. Victory was finally within reach.

"Mamma mia, she actually did it!"

Professor Crowler, his worldview entirely shattered, recalled Hoshino's words from earlier that morning: that she would fight alone to fill the gap left by evacuating the students.

It seemed unbelievable, but now, it wasn't just filling a gap—she had single-handedly turned the tide of the war.

"We did it! We actually did it!" Hoshino cheered, marveling at the power of their summoned Heroic Spirits.

Hoshino-sensei patted her younger self's fluffy white hair with pride. "Yes, we did it. Together, we've stopped the beast wave!"

"No, it wasn't me—it was us, Sensei! Together!" Hoshino insisted, shaking her head vigorously.

"Haha, but aren't you just me? There's no need to be so formal."

The two Hoshinos exchanged a glance. The bond they shared—a connection beyond family, friends, or lovers—was something only they could understand.

"Hoshino Chiyuki," a deep voice interrupted their moment.

Descending slowly from the sky, a man landed before them. "I must admit, I underestimated you. Even the combined forces of monsters from the age of destruction couldn't bring you down."

The two Hoshinos spoke in perfect sync:

"Of course, after clearing the minions, it's time for the boss to show up!"

"If it's a Spirit-user like you," the man said with cold confidence, "then it seems I'll have to deal with you personally."

His exaggerated hairstyle and bizarre black-and-white mask, combined with his dramatic entrance, made it clear he wasn't an ordinary opponent.

"You must be Paradox, the one aiming to erase the history of Duel Monsters as mentioned by Byakuya, right?" Hoshino pointed accusingly.

The man removed his mask, revealing a surprisingly ordinary, even handsome face—no scars, no mechanical modifications—just an unassuming expression.

"Yes, that's correct," he replied coolly. "And since you seem to know that, I assume you're prepared to face the consequences of your interference."

Hoshino-sensei raised an eyebrow. "You don't look like the usual deranged villains we deal with. So, why go to all this trouble to erase Duel Monsters?"

Paradox spread his arms, gesturing to the ruined academy grounds and the flames still raging in the sky. "Why? Look around you! The destruction caused by Duel Monsters is everywhere. Isn't it obvious?"

Hoshino shot back, "You caused this destruction yourself! How dare you blame Duel Monsters for your actions? You're just a typical villain trying to justify your twisted goals!"

Paradox shook his head, a grim smile on his lips. "You mortals don't understand. Left unchecked, Duel Monsters will lead the world to chaos and destruction. The age of ruin is inevitable unless drastic action is taken."

With a sinister smile, the duel disk on his arm began to glow. "And it seems I'll have to show you the truth myself. Replace it—Malefic World!"

The surroundings shifted violently, the ruined academy replaced by a surreal, kaleidoscopic landscape. The colors swirled unnaturally, creating a disorienting and oppressive atmosphere.

Hoshino narrowed her eyes. "Malefic World... the dimension where losers are erased from existence."

Paradox corrected her, his voice calm yet chilling. "No, this isn't simply a realm of death. It's the absolute space of judgment, created by the will of the world itself to reshape reality."

In this space, all the previously summoned Heroic Spirits vanished, their forms dismissed. Even Gilgamesh faded into nothingness, leaving only the two Hoshinos standing amidst the distorted battlefield.

Paradox smirked. "Come, Hoshino Chiyuki. Let this duel decide the fate of the future! I will erase you both from existence!"

[Paradox VS Hoshino Chiyuki X 2]

[Duel Start!]

Without giving them a moment to react, the duel began.

"You're starting a duel against the two of us?" Hoshino asked mockingly. "The last guy who tried a 2v1 in Malefic World got wrecked!"

"And you've already walked into a trap with no escape," Hoshino-sensei added, a smug smile on her face. "You're done for."

The two Hoshinos activated their duel disks in perfect sync. The ultimate showdown, deciding the future's fate, was about to begin in the surreal realm of Malefic World.

"Since I've activated the Field Spell [Malefic World], I'll take the first turn," Paradox declared confidently. He slammed a card onto his duel disk.

"I summon [Malefic Rainbow Dragon] by banishing one Rainbow Dragon from my deck!"

A magnificent dragon emerged, its kaleidoscopic form glowing brilliantly within the distorted world.

[Malefic Rainbow Dragon★★★★★★★★★★ (Level 10)][DARK][Dragon/Effect][ATK 4000/DEF 0]

"An opening move with a 4000 ATK monster? Not bad," Hoshino-sensei admitted, impressed by the sheer strength of the Malefic World deck.

Paradox responded coldly. "This is merely the beginning. You haven't even glimpsed the true power of Malefic World yet."

He placed two cards face-down onto his duel disk. "I set two cards and end my turn."

[Paradox: 2 Hand Cards | 2 Set Cards]

Hoshino-sensei gestured toward her younger self. "The next move is yours."

"Understood, Sensei!" Hoshino nodded and drew her next card.

"My turn! I summon [Heroic Spirit – Cú Chulainn] in Attack Position!"

[Heroic Spirit – Cú Chulainn★★★★ (Level 4)][LIGHT][Warrior/Effect][ATK 1600/DEF 1600]

Despite facing a 4000 ATK monster, Hoshino showed no hesitation. Using Cú Chulainn's ability to survive battle destruction, she aimed to stall for time.

"I set two cards face-down and end my turn!"

[Hoshino: 3 Hand Cards | 2 Set Cards]

Paradox smiled as he drew his next card. "My turn! Draw! Now, Malefic Rainbow Dragon, attack Cú Chulainn!"

A torrent of prismatic energy erupted from the dragon's maw, aimed directly at Cú Chulainn.

"Cú Chulainn's effect activates! Once per turn, he cannot be destroyed by battle, and I take no battle damage!" Hoshino declared confidently.

The agile spear-wielding warrior dodged the devastating rainbow blast with ease.

"Hmph. Impressive. I end my turn," Paradox said, folding his arms.

[Paradox: 3 Hand Cards | 2 Set Cards]

Hoshino-sensei smiled knowingly as she drew her next card. "It's my turn. Draw!"

Looking at her hand, Hoshino-Sensei's expression remained calm, even though the key Fusion card for her Magical Girl archetype had yet to appear. Instead, she smirked, signaling a hidden advantage.

"Chiyuki-chan, I'll be borrowing your dog for a bit!" Drawing a card from her hand, Hoshino-Sensei inserted it into her duel disk. Instantly, a dazzling magical sigil appeared beneath Cú Chulainn's feet.

"Shining with starlight, the magical girl of love and justice! From my hand, I activate the Continuous Spell—[Phantasmal Summoning (Install) - Fusion]!"

[Phantasmal Summoning (Install) - Fusion Continuous Spell Effect: This card's name is treated as "Phantasmal Summoning" in the rules. ①: Once per turn, you can send the materials listed on a Fusion Monster from your hand or field to the GY to Fusion Summon that monster from your Extra Deck. If you Fusion Summon a "Magical Girl" Fusion Monster this way, you can also use 1 monster from your Deck as material.]

"Using the effect of [Phantasmal Summoning (Install) - Fusion], I fuse [Heroic Spirit - Cú Chulainn] on the field with [Magical Girl – Illya] from my deck!"

From both the field and deck, two radiant beams of light shot forth, converging and fusing within the magical sigil beneath Cú Chulainn.

"Class Card: Lancer, Install—Cú Chulainn!"

Illya emerged from the brilliant glow, her school uniform transforming as the light enveloped her.

"—Fusion Summon! [Magical Girl – Cú Chulainn Illya]!"

Illya, now clad in Cú Chulainn's iconic blue bodysuit, brandished a gleaming crimson spear pulsating with intense energy.

[Magical Girl – Cú Chulainn Illya ★★★★★★★★ (Level 8)][WIND][Warrior/Fusion/Effect][ATK 2000/DEF 1600]

[Materials: Magical Girl Illya + Heroic Spirit – Cú Chulainn]

Watching the stylish fusion of Cú Chulainn's armor and Illya's presence, Hoshino's jaw dropped. "So you can even use Heroic Spirits like that? That's incredible, Sensei!"

"Hehe, this is the power of a Magical Girl—combining strength and elegance!" Hoshino-Sensei pointed toward the massive Malefic Rainbow Dragon, declaring, "Show him what we're capable of! Attack, Illya!"

Wielding her crimson spear with a flourish, Illya dashed forward at blinding speed, her petite frame defying expectations. "Here I go, Master! With this spear that pierces the heart!"

Paradox raised an eyebrow. "Your monster has 2000 less ATK than my Malefic Rainbow Dragon, yet you still choose to attack? ...Fine, then. I'll counterattack!"

Once again, the Malefic Rainbow Dragon unleashed a radiant, dark beam aimed directly at Illya.

However, Illya deftly somersaulted, evading the destructive ray with ease. "Thanks to Cú Chulainn's power, an attack like this is useless against me!"

[①: When this card is Special Summoned: It cannot be destroyed by battle or card effects this turn. Any battle damage inflicted on your opponent this turn becomes 0.]

"Hmph. Another monster that clings to survival," Paradox scoffed. "But mere survival won't help you defeat a Malefic monster."

"Who said anything about just surviving?" Hoshino-Sensei smirked, raising her hand dramatically. "Show him the true power of a Magical Girl! Illya, it's time!"

"Yes, Master!" Illya's crimson spear glowed even brighter, pulsating with immense magical energy as she took aim at the towering dragon.

"—Noble Phantasm Deployment: Gáe Bolg!!"

The scarlet spear, thrown with devastating force, descended like a meteor and struck the massive form of the Malefic Rainbow Dragon. The difference in attack points was rendered meaningless as the spear's overwhelming magical energy engulfed and obliterated Paradox's monster.

"This can't be…" Paradox stood frozen, watching as his seemingly invincible dragon was effortlessly annihilated.

[Magical Girl – Cú Chulainn Illya Effect: If this card is Special Summoned: If this card battles an opponent's monster, and that monster would not be destroyed by battle, destroy that monster instead and send it to the Graveyard.]

Proudly displaying her Fusion card, Hoshino-Sensei boasted, "With the effect that prevents destruction during the turn it's summoned, this card can bypass raw strength and achieve a clean one-shot kill. Learned something new?"

Hoshino's eyes sparkled with admiration. "That's so strong—and so cool, Sensei! I want to learn how to transform into a Magical Girl too!"

Hoshino-Sensei smiled warmly and replied, "Don't rush, Chiyuki-chan. Someday soon, you'll gain this power too."

(*****)

If you'd like to read 25 chapters ahead, please consider joining my Patreon: patreon.com/ANeet. Your support means a lot. Thank you!