Kazuto Yamashiro was a man of simple truths.
One: anime waifus were the backbone of civilization.Two: asses were the greatest natural wonder.Three: he was now living proof that sometimes, the gods really did answer prayers.
Because at this very moment, he was running behind Ayame—the tsundere swordswoman with an ass so round it might have been forged by divine geometry itself—while goblins tried to murder them both.
Her hips swayed violently as she sprinted, sword flashing. Every bounce of her bust. Every quake of her ass. Every rippling jiggle was like an orchestra tuned to his soul.
Kazuto could only cry out the truth of the universe.
"Your booty has seismic power!"
Ayame nearly tripped."STOP SHOUTING STUPID THINGS AND KEEP YOUR EYES OFF ME!"
Kazuto clutched his chest like a martyr."I can't! I won't! The Booty Goddess herself gave me this gift! If I look away, I dishonor the divine ass of destiny!"
Ayame's face went scarlet."Y-you—you shameless pervert!!"
Her sword cut clean through a goblin, sending its green head flying. But Kazuto's eyes weren't on the sword.
They were locked on the follow-through of her hips.
And when her ass swung just right—
BOOOOM!
The forest floor shook. A ripple spread through the air. The goblins nearby staggered.
Kazuto's system chimed.
[System Log: Bootyquake Slash registered.][Power absorbed: +75.][Lewd Level: 2 → 3.]
Kazuto's body thrummed with energy. His limbs felt stronger. His heart raced with ecstasy.
He fell to his knees. "YES! Booty-based power is real! The waifu jiggle system works!!"
Ayame whipped her head back, glaring at him with murder in her eyes."Will you stop acting like some kind of lunatic and actually fight?!"
Kazuto sprang to his feet, holding a stick he'd picked up earlier. He swung it wildly at a goblin—and to his shock, the stick sliced the crude weapon in half like it was butter.
"Holy—! I really am powered by ass!!"
Ayame almost choked on her own breath."Don't say it like that!"
Fanservice Accident #1 – Panty Reveal
The battle raged on. Goblins leapt from the bushes, snarling and swinging their jagged clubs.
Ayame fought like a whirlwind, her sword flashing. Kazuto swung his stick in clumsy arcs, somehow connecting with unnatural strength.
Then it happened.
Ayame pivoted for a slash, but her boot caught on a tree root.
"W-wha—?!"
Her balance tipped. Her skirt lifted.
Kazuto's eyes widened, pupils dilating like a man seeing the face of God.
Pink.
She wore pink panties, hugging tight against her perfect peach-shaped ass.
Kazuto's jaw dropped. His nose erupted."THE PANTY OF DESTINY! IT'S REAL!!"
Ayame's shriek pierced the clearing."Y-y-you saw that?!"
"I saw salvation! My reason for living!!" Kazuto howled, blood pouring from his nostrils like a fountain.
Her boot slammed into his chest with enough force to knock him into a tree."PERVERT! KEEP YOUR FILTHY EYES TO YOURSELF!"
Kazuto coughed blood and grass, grinning like a man high on life."Worth it. Totally worth it."
Goblin Swarm
The goblins regrouped. At least ten remained, snarling, surrounding them. A couple even wore crude armor.
Ayame tightened her grip on her sword, chest heaving. "Tch… more of them."
Kazuto stood, dusting himself off. "Don't worry, my tsundere waifu. I've leveled up. With every bounce of your booty, I get stronger!"
"STOP SAYING THAT!!"
The goblins charged.
Ayame swung, releasing another Bootyquake Shockwave. Three goblins flew into trees.
Kazuto's system pinged:[Lewd Level: 3 → 5.]
His vision sharpened. His stick glowed faintly with power.
"Perfect! Watch this, Ayame!"
He lunged forward, swinging the stick like a baseball bat. The goblin's club shattered on contact. The goblin itself spun mid-air before crashing unconscious.
Ayame blinked. "W-wait, how did you—?"
Kazuto pointed dramatically at her ass."Because YOUR BOOTY IS MY POWER SOURCE!"
Her eye twitched so violently it was visible mid-battle."Shut. The hell. UP!"
Fanservice Accident #2 – Breastplate Break
The battle grew bloodier. Goblins swarmed from all sides. Ayame cut them down, her sweat glistening in the sunlight.
Then one goblin's axe struck her square in the chest.
CRACK!
Her breastplate snapped. Metal bent, straps popped. Her chest bounced free, contained only by her tight undershirt.
Kazuto's entire soul left his body."B-b-b-b-b-b-b-b-b-b-b-b-b-b-BOOBS!!"
Ayame gasped, one arm crossing her chest, face flaming."D-don't look, you disgusting creep!!"
Kazuto was already kneeling like a monk before a shrine, tears streaming."They're so round… so heavenly… truly, the Goddess of Booty has blessed you in every dimension!"
Her boot cracked against his skull."FOCUS, YOU IDIOT!"
The Finisher – Bootyquake Fusion
The goblins regrouped, snarling, weapons raised. They formed a circle, trapping Kazuto and Ayame in the middle.
Ayame panted, sword heavy in her hands. Sweat rolled down her cheek. Her armor was broken. Her clothes torn. Her stamina nearly gone.
Kazuto stepped forward, grinning with nose still bleeding."Don't worry. I've got a plan."
Ayame narrowed her eyes. "If it involves anything indecent—"
"It involves your booty and my stick."
Her jaw dropped. "…WHAT?!"
The goblins roared, charging.
Kazuto pointed at her. "Trust me! Just swing! Bootyquake one more time!"
Ayame growled, fury burning in her golden eyes. But she had no choice.
She spun. Her hips twisted. Her ass bounced like thunder.
Kazuto leapt in sync, swinging his stick at the exact rhythm of her jiggle.
FUUUSION!!
The combined shockwave rippled outward.
BOOOOOOOOOM!!!
The earth split. Trees shook violently. Birds fled the forest. Every goblin in a twenty-meter radius was blown to pieces or slammed unconscious into trees.
The silence that followed was deafening.
Aftermath
Ayame stood frozen, chest heaving, sword lowered. Her cheeks flushed bright red."…D-did that actually just work?"
Kazuto collapsed to his knees, hands clasped like a preacher."Yes… yes!! Our Booty Synchrony is flawless! You and I are destined to be partners forever!"
[Quest Complete: Acquire Party Member (Tsundere Booty Edition).][Reward: 100 Lewd Points.][New Skill Unlocked: Booty Synchronization Lv.1.]
Ayame blinked as golden light briefly wrapped her. A system notification echoed:
[Party Member Added: Ayame the Tsundere Swordswoman.]
Ayame tightened her broken armor, glaring daggers at him."This… doesn't mean we're friends. Don't get the wrong idea. I'm only sticking with you until I figure out what's going on with that weird power of yours."
Kazuto grinned, blood dripping from his nose."Say whatever you want… but the system has spoken. Your ass and my destiny are forever bound."
Her fist slammed into his face."SHUT UPPPP!!"
Kazuto soared ten feet before crashing into a bush.
He sat up, grinning despite the bruises."This is the best day of my life."