I Became an S-Class Butt Awakener

I never imagined my life would change because of my ass.

In this world, during the throes of puberty, a part of every person's body awakens with supernatural power. Some people get their eyes, others their hands or legs. The awakened body part determines your talent, your future, your entire destiny. It's a society where your rank as an Awakener can turn your life upside down overnight.

And me? I awakened as S-class.

The highest rank. The kind of power treated like a national treasure. The sort of thing that makes governments roll out the red carpet and offer you everything on a silver platter.

But the awakened part... was my butt.

Yeah. My freaking ass.

At first, I thought it was a joke. A glitch in the system. Some cosmic prank. Because who the hell awakens their glutes at S-rank? The doctors, the researchers, even the government officials who showed up at our door all wore the same expression—like they'd bitten into a lemon while trying to look professional.

"Baek Gangjin. Confirmed S-class awakening in the gluteus maximus region."

The words still echo in my head like some kind of bad ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠dream. My parents cried. Not from joy, but from a weird mix of pride and secondhand embarrassment. My little sister wouldn't stop laughing for three whole days. And me? I just wanted to crawl into a hole and die.

Because in a world full of cool powers like flame fists, lightning eyes, or super-strength arms, I got the ability to... what? Make my butt stronger? Shake it at enemies until they surrendered from sheer awkwardness?

The Butt Awakener. That's what they started calling me at school. Not to my face, of course. But the whispers followed me everywhere.

Still, S-class is S-class. The mana capacity alone was off the charts. The researchers said my glute muscles contained more raw power than most entire teams of A-rank awakeners combined. They just had no idea how to use it. Or rather, they were too embarrassed to try figuring it out.

So here I am. Enrolled in Korea's top Awakener Academy, where the elite train to become the world's greatest hunters, defenders, and heroes. And I'm the guy who sits in the back row trying not to draw attention to the fact that his greatest power is located approximately two feet below his waist.

Today was the first day of classes. The entrance ceremony had been a nightmare. When they called my name and announced my rank, the entire auditorium went dead silent for five full seconds before someone in the back snorted. Then the ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠laughter started. I wanted to activate my power right there and blast them all into orbit with a single clench.

But I held it in. Because that's what I've always done. Held it in. Endured it. Pretended it didn't bother me.

"Hey, Butt Awakener!"

A voice snapped me out of my thoughts as I walked down the hallway toward the combat training wing. I didn't even need to turn around to know who it was. Choi Taehyuk. Self-proclaimed genius with an S-class right arm. The kind of guy who awakened with the ability to manifest a blazing sword from his forearm. Of course he'd be the one to start shit on day one.

"Heard your power's in your ass," he sneered, flanked by his usual group of lackeys. "What, you gonna fart them to death? Or maybe twerk your enemies into submission?"

His friends howled with laughter. I felt heat rising to my face, but I kept walking. Don't engage. Don't give them the satisfaction.

"What's the matter? Too embarrassed to show us your special move?" Taehyuk called after me. "Come on, S-class! Let's see that legendary butt in action!"

I stopped. My hands clenched into fists at my sides. Something inside me—the same something that had awakened that ridiculous power—began to stir. A warm, pulsing energy centered right where I least wanted it to be.

I turned slowly, meeting his eyes. For the first time since my awakening, I didn't feel ashamed.

I felt angry.

"You want to see it that badly?" I said, my voice low. "Fine. I'll show you."

The smirk on Taehyuk's face faltered just a little. Maybe he saw something in my eyes. Or maybe he finally realized that ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠even if the power sounded ridiculous, it was still S-class.

I took a deep breath. Focused. The mana circuit in my glutes began to activate, flooding my body with power I'd barely begun to understand. My legs felt lighter. My core stronger. And my ass—well, let's just say it was humming with enough energy to level a building.

Taehyuk's lackeys took a step back. One of them actually looked nervous.

"W-wait," Taehyuk stammered, his flaming right arm flickering uncertainly. "I was just joking—"

Too late.

I turned around, planted my feet, and did the one thing I'd sworn I'd never do in public.

I activated my power.

The hallway trembled. Lockers rattled. Windows vibrated in their frames. A visible wave of golden mana erupted from behind me, so bright it cast long shadows down the corridor.

Taehyuk's eyes widened in pure terror as the sheer pressure of my power washed over him. His flaming arm sputtered out like a cheap lighter in the rain.

"Holy sh—"

Before he could finish, I took one step forward. Just one. The floor cracked beneath my foot. The force transferred through my awakened glutes like a perfectly tuned spring, launching me forward at ridiculous speed.

I didn't even need to touch him. The shockwave from my movement alone slammed into Taehyuk and ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠his crew like a truck made of pure embarrassment. They flew backward, tumbling across the floor in a heap of limbs and wounded pride.

When the dust settled, I stood there, breathing hard. My butt felt strangely warm. Almost... satisfied.

The hallway was silent except for the groaning of Taehyuk's group.

Then, from somewhere behind me, I heard slow clapping.

I turned to see a girl with silver hair and piercing blue eyes leaning against the wall. Her nametag read Seo Yeonji—another S-class, if the rumors were true. Something about spatial manipulation through her fingertips.

"Not bad, Butt Awakener," she said with a small smile. "Most people with ridiculous powers spend their whole lives running from them. You just used yours to shut up the biggest asshole in our year."

I felt my face burning again, but this time it wasn't just from shame.

"It's Baek Gangjin," I muttered.

"I know." Her smile widened. "But I think 'Butt Awakener' has a better ring to it. Has character."

She pushed off the wall and walked over, extending her hand. "Welcome to the academy, Gangjin. Try not to blow up the training grounds with that thing, okay? The instructors are already terrified of you."

I hesitated, then shook her hand. Her grip was firm. Confident. The kind of grip that said she didn't care what part of your body was awakened—as long as you knew how to use it.

Maybe... maybe this wouldn't be so bad after all.

Even if my power came from the most embarrassing place imaginable.

As we walked toward the combat arena together, I could feel the eyes on us. The whispers starting up again. But this time, they felt different. Less mocking. More... curious.

For the first time since my awakening, I didn't want to hide my power.

I wanted to master it.

Even if that meant accepting the fact that I, Baek Gangjin, was now officially the world's strongest butt awakener.

God help me.