Survive With the Max Level Guide

It was well past midnight by the time we returned home.

I was so exhausted I couldn’t even lift a finger. My legs were so weak I could barely stand, let alone walk. Honestly, the fact that I hadn’t passed out was a miracle. Considering how long we’d been going at it, it was no wonder…

And it wasn’t like Shim Tae-seong’s preferences in bed could be described as gentle, either.

After parking the car, Shim Tae-seong threw his coat over my limp body slumped in the passenger seat, then picked me up and carried me inside.

The bodyguards stationed at the house looked visibly flustered when they saw the state I was in. But Tae-seong walked right past them, radiating an aura that said Don’t even think about asking. A terrifying rookie.

As always, Noona and my mother weren’t home—they’d pulled an all-nighter at the company again. The house was quiet.

I already knew they wouldn’t be back tonight; I’d confirmed that much over the phone with Mom earlier. That was why I’d decided to go all in with guiding Shim Tae-seong today.

And conveniently enough, Tae-seong had taken me somewhere perfect for fucking.

…He went absolutely insane on me.

It felt so good I honestly thought I was going to lose my mind.

“Wouldn’t it be better if I helped you shower?”

Shim Tae-seong offered as he sat me down on the bed.

Those gentle-looking eyes… I knew how they flared with lust, how they burned as they watched my every move—there was no way I could take that suggestion at face value.

No. If we go again, I will black out.

“A… No, it’s okay. You should get some rest too, Mr. Bodyguard.”

“I’m perfectly fine.”

He looked down at me with a face that said he couldn’t be in better condition.

Sure, I get that being guided must’ve helped him recover or whatever.

But after cumming that many times, how is he not the least bit tired?

…Don’t tell me he was holding back on me?

A chilling thought crept into my mind. And judging from the way he looked right now, it was totally possible.

“Just bringing me back here is more than enough. I’ll rest a little and move around on my own. You should head in. It’s really late.”

I smiled, burying my suspicions for now.

Tae-seong’s gaze locked onto my lips, which were slightly swollen—probably from how ruthlessly he’d ravaged them.

“Oh, and…”

I shyly tilted my head down.

My neck, still bearing the bite marks like a beast had claimed me, peeked into view.

“If you ever need guiding again… just say the word.”

A brief silence settled between us.

If that turned you on, sorry—but I really can’t.

Honestly, I don’t even want to shower. I just want to collapse and sleep.

“……Yes. Thank you.”

A belated reply came back.

“Then sleep well, Young Master.”

“Have a good night.”

He gave me a brief, polite bow in response and turned away.

He was probably going to spend the night in the guesthouse on the property.

After seeing Shim Tae-seong off, I waited a moment before staring blankly into space.

Ding!

[Bonus Quest Progress
Shim Tae-seong: Outdoor (Complete), Oral (Complete), Semi-nude (Complete)
→ Reward Applied]

The common keyword of “more than five hours”… Five hours? We went way longer than that, so obviously it counted.

The reward—now that was the real deal.

It was basically the reason we ended up getting back so damn late.

Apparently, the effect boosted both guiding and pleasure during physical contact. When it kicked in midway through, we both went absolutely feral, like animals in heat, and launched into round two without even realizing it.

It was insane.

Every single place he touched felt like a new erogenous zone.

And it didn’t stop there—just the sound of each other’s voices or even breathing was enough to make us dizzy with arousal.

Even when Tae-seong was cleaning me up afterward, it was too much. I felt everything way too intensely, it was almost unbearable… and in the end, after the cleanup, we went one more round with a finish outside, just to wrap things up.

……

Come to think of it, the only reason my pathetic stamina hadn’t given out completely must’ve been because of the reward, too.

The usual side effects of deep guiding—like dizziness, fatigue, and mental fog—felt dramatically reduced.

It was practically a safety net designed to prevent someone like me, who usually gets totally drained during guiding, from passing out in the middle of sex.

I have to complete every bonus quest from now on. No question.

…When is my brother going to show up already? It’s about time.

Tomorrow? The day after?

Whenever it is, he’d better come back before the marks on my body fade.

That way, when he sees them and loses his mind in a fit of rage, he’ll realize his keywords without a second thought.

I mean, my brother’s the kind of guy who used to panic at the thought of me getting hurt just from tripping in the wind. He always saw me as this fragile little sibling he had to protect, even after I became an adult.

Sure, his gaze changed once I manifested as a Guide, but a deeply ingrained habit like treating me like something precious and breakable doesn’t just vanish overnight.

Even if he comes back with the full intention of fucking me, I doubt he’ll be rough about it.

He didn’t even know his own tendencies yet. But it wouldn’t be long before that careful restraint shattered, and he unleashed those wildly irrational desires on me.

Smiling to myself at the thought, I slowly, painstakingly lifted my heavy body and shuffled toward the bathroom.

…But no way it’s tonight, right?

***

Before he left, Cha Eun-hyuk had mulled over several critical concerns. A region where he could exhaust his abilities to destabilize the waves. A long-term deployment following post-mission testing. And most importantly: someone competent enough to protect Cha Eun-soo in his absence.

His youngest brother had become someone capable of shaking the world to its core. Even if he kept the truth under wraps, Eun-hyuk couldn’t relax without raising the protection level around him.

So, he decided to assign a dedicated bodyguard.

With two key conditions:

Someone with overwhelming physical strength—but not an Esper.

If it were an Esper, even the slightest touch would reveal that Cha Eun-soo was a Guide.

Some might scoff, saying no one could be called a powerhouse without being an Esper. But strength couldn’t be defined solely by supernatural ability. There were still exceptional individuals out there. People who honed themselves beyond human limits through sheer discipline, gifted with superior instincts, judgment, and raw physical prowess.

Cha Eun-hyuk knew someone like that.

Shim Tae-seong.

A former teammate who, like Eun-hyuk, had lost his family to an Esper terrorist. Even his one remaining sibling had passed away, and he’d eventually left the team, consumed by grief.

Back when they were on the same squad, Shim Tae-seong never once hesitated in the face of danger. In fact, he showed more courage and responsibility than most Esper agents, and he always got results.

He was quiet and careful by nature—traits Eun-hyuk deeply respected.

After leaving the team, he heard Tae-seong had started working as a bodyguard. That alone had made him the top candidate to protect Cha Eun-soo. There was no one more suitable.

But now…Was it really him? The one he’d trusted that much?

The one responsible for the bruises marring Cha Eun-soo’s body?

A bedroom wrapped in the silence of dawn.

Cha Eun-hyuk stood hidden in the shadows, watching over his sleeping brother—completely unaware of his presence.

Under the dim bedside lamp, pale, delicate skin peeked out from a loosened shirt. On his slender neck, and scattered across his body, were unmistakable traces— the kind only left with very specific intent.

Marks that clearly screamed sex.

Eun-hyuk stared at them for a long time, his face utterly blank.

His brain worked methodically to assess the situation, ice-cold and clinical. But his heart? It responded to what he saw—and from its depths, fury began to boil.

Slowly, he reached out his arm.

Riiip—

With a merciless motion, he tore Cha Eun-soo’s shirt open. Effortlessly.

Even then, Cha Eun-soo didn’t so much as stir.

Eyes shut without the slightest twitch. Breathing soft and steady, not a hint of restlessness.

He hadn’t even dried his hair before falling asleep, still damp and clinging to his skin—just how utterly drained he must’ve been was painfully obvious.

Cha Eun-hyuk clenched his jaw so hard it made a harsh, grinding crack.

Then, without a shred of hesitation, he tore his brother’s pants apart in one brutal motion.

With a rough jerk, Cha Eun-soo’s naked body was laid completely bare.

His skin—pale as snow—was mottled with bruises and bite marks, scattered like stamps of someone’s unrestrained desire. Handprints. Teeth.

Eun-hyuk squeezed his eyes shut, forcing himself to breathe.

“…Tch…!”

His resonance—already in shambles compared to before he received guiding from Eun-soo—welcomed the surge of volatile negative emotions like open arms to a flame.

A mind-crushing pressure wrapped around his skull, exploding into a blinding headache.

His heart pounded furiously, and he couldn’t tell if it was pain or pure rage driving it.

Maybe it was both. That’s why it hurt so damn much.

His thoughts burned as his head overheated, but he forced himself to think through the fire.

My Guide… who the hell laid hands on my brother?

Was it really Shim Tae-seong?

…But did it even matter who it was?

Whoever it was, he had to find them. Had to—But then what?

Cha Eun-soo was, legally, an adult.

He had every right to sleep with someone if he chose to.

It wasn’t like he guided another Esper… and even if he had—Eun-hyuk had no right to interfere.

If he gave in to the twisted, possessive hunger simmering deep beneath his rationality…

If he revealed that dark, bottomless swamp within himself…

Eun-soo might recoil in disappointment. He might run.

And yet—Cha Eun-hyuk couldn’t take it.

He couldn’t stand it.

The overwhelming urge to erase every single mark from Cha Eun-soo’s body. The desperate thirst for guiding. The rage that clawed at his nerves and set his sanity on fire.

All those emotions—tangled into a single, burning knot called arousal—They thrashed inside him, demanding release.

And soon enough, they began to corrode the reason of a brother staring at his sleeping sibling.