Chapter 10

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Translator: penny

Chapter: 10

Chapter Title: Genius Coaching Effect

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Plop!

Na-young Han's body, which had been on the verge of spraying fluids everywhere, collapsed onto the bed.

Her legs remained spread wide in the position where her love juices had been dripping, twitching faintly.

"Na-young? You okay?"

"Ah... haa... "

I shook her, but all I got back were moans, as if she was begging me to let her be.

Her face was a complete mess from the overwhelming climax.

She must have passed out from the intensity of the pleasure.

'Who would've thought she'd faint before we even got to the main event.'

I didn't want to have sex with her while she was out cold.

If I went ahead and something went wrong with her body, it'd be a huge ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠problem.

More than that, there'd be no fun in pounding away with no reaction.

"Too bad, but looks like this is as far as we go tonight."

Sex with Na-young was just getting started anyway.

I'd already confirmed through So-hee Yoo that even just teasing and climaxes had effects.

Now all that was left was for Na-young to notice the changes in her body.

After that, she'd come offer herself to me on her own.

For an athlete who's devoted her life to sports, the temptation of improved condition and skills from a little touching would be impossible to ignore.

'Honestly, even before becoming a coach, I had my eye on Na-young.'

Freely groping this stunning figure was pure thrill.

Her huge breasts and firm ass each felt incredible in my hands.

On top of that, her face was idol-level, and her voice was sweet.

Just being able to have sex with a woman like this was a massive stroke of luck.

'Seriously, no matter how many times I look, this body's a knockout.'

Ridiculously huge tits.

An idol-slim waist sculpted by training.

And hips that jutted out dramatically in contrast.

It really felt like a body designed to drive men wild.

How had she never had a boyfriend with a face and figure like that?

'Is there some backstory I don't know about?'

She had a reputation for being prickly with coaches and athletes.

But it felt like there was more to it than that.

Well, thanks to the system, she likes me, so it's all good.

If anything, that makes her even hotter.

'A girl who's ice-cold and unapproachable to other guys, but looks only at me. Feels like I'm the protagonist in some erotic game.'

Thinking of Na-young's usual haughty demeanor made my cock throb even harder.

A week ago, if you'd told me she'd be lying naked in my room, I wouldn't have believed it.

With this, I'd taken a step closer to my goal.

All that remained was to gradually "coach" her and boost her skills bit by bit.

"...First, I should clean up the room."

The room was a mess from Na-young's squirted juices.

While I was at it, I gently wiped down her body with some wet tissues.

Look at me, such a caring coach for my athletes.

The next day.

Na-young Han started her hectic day from ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠the crack of dawn.

After sleeping deeply for the first time in ages, Coach woke her up, and she finally came to her senses.

As her dazed eyes opened, memories of last night flashed through her mind.

"Na-young, sleep well?"

"Eep! Oh, g-good morning?"

Na-young instinctively pulled the covers up to her chest.

She was still naked from last night.

"Go wash up first. I wiped you down a bit, but you still feel sticky, right?"

"Y-yes. Thank you."

She showered right away and changed back into her regular clothes.

When she came out, Coach had prepared breakfast amid his busy schedule.

Rolled omelet, spam, seasoned veggies, and kimchi stew.

The spicy flavor was perfect; she ended up scarfing down three bowls of rice.

'...Or maybe because last night's coaching was so exhausting?'

Recalling last night made Na-young's pale cheeks flush red.

She'd been so lost in ecstasy, but the memories were crystal clear.

No, even after leaving the dorm and starting training, that's all she could think about.

'Well, how could I forget something like that.'

It had been too ecstatic, too pleasurable a night to forget.

Coach's caresses had been that electrifying.

Chills ran through her the moment he touched her ass.

Her waist trembled when he sucked on her breasts.

He'd fingered her pussy until she squirted.

Just one night of Coach's "coaching."

But it was enough to etch deeply into Na-young's mind and body.

'Coach's touch was just... incredible♥'

Having no experience with men didn't mean she lacked sexual knowledge.

She was confident she knew plenty from all the adult webtoons she'd read.

...Probably.

'But what Coach did... it was on another level from masturbation.'

A skilled adult's touch targeting a woman's weak spots.

It felt unbelievably good.

Truth be told, she'd been waiting for him to touch her pussy ever since his hand brushed her ass.

It was already aching and tingling.

The pleasure was so intense she'd forgotten her duty to endure the coaching properly and just moaned away.

'If coaching like that works, I'd want more even without effects...♥'

She wasn't doubting Coach or thinking it wouldn't work.

But expecting one session to end her slump was overly optimistic.

Even so, she wanted more coaching regardless.

That was Na-young's honest desire.

'I wonder if he'll do it again if I ask. Last time I passed out midway, so we didn't finish.'

With those thoughts, she stepped up to the heavy bag.

She threw a habitual kick at the spot she'd struck thousands of times.

Thwack!

The bag swung sideways with absurd force.

It was more perfect than any kick she'd ever landed—even better than before her slump.

"...Huh?"

She stared blankly at the swaying bag for a moment.

Then her gaze turned to her own body.

She suddenly realized her condition was amazing.

No, beyond that—blood was pumping rapidly through her veins, endorphins flooding her system.

"...One more time."

Na-young swallowed hard and threw another kick.

The result was the same.

Thwack!

This time, with proper form, the technique was even more refined.

'...Incredible. Is this the power of Coach's coaching?'

Power surged through her entire body.

Her legs felt weightless, like gravity didn't exist.

It was incomparable to the times when her slump kept her from peaking properly.

Her kicks shot forward fast and hit dead-on.

She could feel every finger in peak condition.

Right now, she felt like she could do anything.

'I've recovered my peak form. No, it feels even better than before.'

Na-young ran through various moves, practicing her stances.

Each time, she could feel her skills improving in an instant.

If this change happened suddenly, there was only one cause.

Coach's coaching from last night!

'...Coach is truly amazing. He fixed my slump in one go, no matter how hard I tried on my own.'

He'd pinpointed issues even the coach right beside her hadn't ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠noticed.

That alone made him a top-tier coach.

And he'd fixed it in one night.

What would happen if she got proper "coaching" from him?

Gulp.

Na-young swallowed without realizing it.

The coaching that had felt so thrillingly good.

Before, she'd just hoped for more.

But now the situation had changed.

'I have to get more somehow. No, beyond that, I want ongoing coaching...'

Only he could make her a national team representative.

To take first here and win gold at worlds, it had to be that coach.

And that coaching felt shockingly good too.

No athlete would hate it.

'After training, I'll ask him for more coaching.'

Na-young vowed to do so as she continued practicing her stances.

With her slump gone and skills improved, her face was beaming.

Before, training never went as planned, leaving her frustrated.

Now that it was fixed in one shot, joy at her growth welled up.

For an athlete, that was like a drug.

Some even trained just to chase that thrill.

Getting it in one night made Na-young's heart pound wildly.

'Ah, I want to go get coached by Coach right now. Maybe he'll praise me for improving♥'

As her mind filled with ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠thoughts of Coach, a conversation she'd normally ignore reached her ears.

"Hey, that coach who's getting kicked out in a month. Isn't he such bad luck?"

"Right? Why's he sticking his nose in when he's leaving anyway?"

"Obvious. He saved a pretty girl and thinks he can get some action."

"Ugh... Bet he's a total virgin loser who can't even get a date."

The women no longer hid their gossip about Na-young.

Na-young herself showed no reaction, and the coaches pretended not to hear.

Normally, Na-young would've brushed it off lightly.

They weren't worth her time.

But trash-talking her Coach? That was different.

"Hey, Yoo-ri Choi."

"Y-yeah? What?"

Na-young strode up and stood before the female athlete gossiping.

It was the first time she'd done this, so everyone panicked a bit.

"Spar with me. Now."

"S-suddenly? You lost to me before."

"Shut up and hurry."

Yoo-ri was flustered but soon smirked.

Beating Na-young in front of everyone would boost her own rep.

...Every athlete has such delusions.

Until they get wrecked.

'...Suddenly?'

That brought Na-young's total trust to 7.

Meaning she trusted me more than when she'd spread her pussy for me naked.

'A sudden trust boost means the coaching worked perfectly.'

I checked her status while I was at it.

Na-young, after my coaching, was completely transformed.

It was straight-up urging me to have sex now.

Of course, that's exactly what I planned.

'With a body and face like that, who'd say no.'

Last night, we hadn't gone all the way, and my cock had suffered for it.

Just thinking of those gorgeous tits and ass made it ready to burst.

That milky skin and those fantasy curves...

No matter how I thought about it, it was one hell of a lewd body.

"Her status confirms the coaching effects are solid."

Honestly, I'd been a bit worried.

Just because it worked on So-hee didn't guarantee it'd work on Na-young.

The system might vary by person.

Or there could be specific conditions.

I'd fretted over what if the effects wore off.

But it was all unfounded.

'If it can turn a slumping athlete around this much, the effects are proven.'

This clarified the system's effects and mechanics.

Raise trust, and the athlete accepts my "coaching" no matter who I am.

Coaching boosts their skills enough for them to notice immediately.

They grow to trust my coaching more and seek it out.

Then sex, more growth, repeat.

'As a coach, this is straight-up cheat-level ability.'

Sure, growth speed and peaks have limits...

But turning any athlete into a superstar? Huge.

And enjoying their hot bodies along the way.

Knock, knock.

A knock came at my office door, where I was alone.

The team's been disbanded for ages—who could it be?

"Excuse me, is Coach Dae-wi Han here?"

Na-young's voice.

I tidied my desk and stood.

"Yeah, come in."

"Hello, Coach. Pardon the intrusion."

Na-young entered and bowed politely.

I'd noticed before, but her manners were impeccable.

'Her figure's manners overflow even more.'

Done with training, she was in casual clothes.

A white top showing off her huge chest and skinny jeans hugging her hips.

Typical no-makeup look, but on Na-young, it was stunning.

Just standing there felt like an idol photoshoot.

'That protruding hip drives men insane.'

Big tits, slim waist, wide hips.

Nothing less than a cheat code of a body.

"Hmm, so this is where you work, Coach."

She looked surprised to see me alone in the office.

"No one else around?"

"It's just me. The team's basically disbanded..."

"Oh..."

True to her indifference to others, Na-young knew I was leaving but not the backstory.

"So, what's up? Something wrong?"

"Oh, no. It's just..."

Na-young twirled her hair around her finger, face flushing.

"Your coaching was so effective. Could I... maybe get some more today?"

Her cautious tone, fearing rejection, made me chuckle inwardly.

Before, I'd had to beg her to let me coach.

Now the tables had turned.

'She saw the effects, so she desperately wants more.'

Of course, I had no intention of refusing.

Na-young's growth was my success too.

"No problem for me. Like last night, in my room... "

Suddenly, another idea hit me.

No one came to this office—why wait till night?

'My cock can't hold out much longer anyway.'

Seeing that lewd body made it throb painfully.

Waiting till tonight to fuck Na-young? Not anymore.

"You free now? How about coaching right here?"

"R-really?"

"If you're okay with it, Na-young."

"Yes! I'd love that!"

She could've balked at the risk, but this was trust's power.

Na-young beamed happily.

That "coaching" was lewd felt oddly thrilling.

'Alright then...'

I stood and approached Na-young.

Then kissed her lips.

"Mmm!"

Caught off guard by the sudden kiss, Na-young startled.

But remembering last night, she parted her lips and accepted my tongue soon enough.

"Mmm... slurp... haa... ♥"

She awkwardly tried to respond, even wrapping her arms around me.

Na-young's soft breasts pressed against me, delivering sweet sensations.

My erect cock brushed her thigh, asserting itself.

Na-young noticed and trembled slightly.