In Heat 2
Harina woke up to the sensation of something sticky trickling down the inside of her thigh. Her whole body felt languid, yet a lewd excitement still lingered, refusing to fade.
"Nngh... again??"
A moan slipped out unbidden. She'd spent the whole night dreaming of tangling fiercely with Hadojin, their bodies entwined.
"I... I had that kind of dream again?"
In the dream, Hadojin had a much more solid, massive build than now. His firm chest, abs chiseled like sculpture, and... she licked her parched lips. It was because his cock flashed vividly in her mind.
Ah, I'm losing it. For real...
Harina pulled the blanket over her head. Even though it was a dream, Hadojin's enormous manhood had been a shock in itself. The feeling of it prying into her most secret place, the pain of being pierced through combined with an explosive pleasure on the verge of bursting. Hadojin had ravaged her like a beast, and Harina had clung to him, wailing.
"Oppa... I... cumdump... your cumdump... fuck me... harder..."
Even if it was a dream, her face burned at the thought of spewing such vulgar words. That's how alluring dream-Hadojin had been. His rough breathing, the veins bulging on his thick forearms, his sweat-slicked body. It all came back so vividly, making her lower belly ache once more.
"It's just a dream... why does it feel so real?"
Writhing under the covers, Harina sighed at her soaked pajama pants.
Last night, that strange feeling in oppas arms must've triggered this dream.
Does oppa... maybe feel the same way about me?
The way he'd looked at her yesterday, the way he'd stroked her hair. It all felt like special signals aimed at her. Maybe she was just drinking kimchi soup, but a tiny spark of hope bloomed in her chest.
"First... let's wash up and think."
Harina got out of bed and headed to the bathroom. After a shower, her head cleared a bit. The clock read 5:40 AM. Twenty minutes until her promise with oppa. She changed into tight workout clothes. She was confident in her figure. Her B-cup breasts could look plenty big with pads.

She stuffed pads into her bra for volume and checked the mirror. Even to herself, it was a pretty decent body.
"Doing makeup this early might look weird?"
She found a no-makeup makeup tutorial on NewTube. A quick base and she nailed the bare-faced look.
"So pretty like this... tch."
Her leggings accentuated her toned figure even more. She slipped on sneakers and headed downstairs with a light heart. In the living room, Hadojin was already stretching. He wore a black sleeveless tee and shorts. Broad shoulders, inverted-triangle back muscles stretching long, solid thighs. The old egeneam Hadojin was gone.
"Oh, you're up? Ready?"
Hadojin turned with a grin. Her heart raced again at his smile. The man who'd massaged her sleeping womb all night in her dreams.
"Yeah. Ready."
"Good. Let's start with stretching, like I showed you yesterday."
Hadojin demonstrated smoothly. Harina followed, dizzy from the masculine scent wafting off him. His body odor mixed with sweat oddly aroused her.
After stretching, they headed outside. The dim dawn air was refreshing. Hadojin started jogging at an easy pace, and Harina kept up.
"Today we'll go a bit faster than yesterday. You good?"
"Yeah. No problem."
Thanks to yesterday's hour-long run, today wasn't as tough. Hadojin kept a steady pace, matching hers. His consideration touched her again.
After an hour, they were drenched in sweat, but it felt great.
"Whoa... way better than yesterday."
"Right? It'll get easier with daily practice."
Hadojin wiped her sweat with a towel. Her face flushed at his touch.
"Now... boxing? Time to learn that?"
"Yep. Booked a martial arts gym I know. Early morning, so it'll be empty."
Honestly, Harina couldn't believe Hadojin did martial arts. His mana was mediocre, and martial arts required some enlightenment.
"But what's boxing? From which school?"
Hadojin grinned. "Just something I figured out."
"??"
They arrived at a small underground gym. It taught martial arts, old but tidy, with sandbags and equipment.
"We'll train here?"
"Yeah. First, put on these boxing gloves."
Hadojin found gloves that fit her and helped her put them on. His fingers brushed her hand, sending a jolt through her. She held her breath.
"Okay, basic stance. Left hand forward, right by your chin. Light steps."
He taught boxing step by step. Clear explanations, clean demos. Boxing felt like pure basics.
"Not using mana?"
"Nah. It's about pure body use. You're doing great."
With over five years of martial arts, she picked up the stance fast.
"Good. Now practice jabs. Light and quick."
Hadojin held mitts and caught her jabs. Awkward at first, but soon sharp ones landed.
"Watch. Difference between martial arts and boxing."
His straight punch shocked her.
"Not just the fist... the whole body? Using your feet and hips like springs..."
"Ooh, you got it quick? Martial arts trains mana output, but boxing attacks with every muscle, no mana."
Harina swallowed hard.
"Insane... oppa. Apply mana and it'd be several times stronger. Revolution in martial arts."
She gazed at him in awe. Boxing could overcome her mana limits—a savior.
"Heh. Practice consistently. Boxing trains your body to react on autopilot."
"Yeah."
"From now on, morning workouts with me. Boxing's our secret, just you and me."
Her face reddened at his words.
"Okay. One more straight? Use hip rotation for power."
She threw it as instructed. Thwack! The mitt pushed back.
"Whoa... good sense."
"Duh. I'm a martial arts genius."
She was surprised by her own power. Martial arts used mana, but boxing felt different.
"Alright. Spar now?"
Her eyes sparkled at his suggestion.
"For real? Spar with me?"
"What, scared I'll lose?"
He teased. She snorted.
"Hmph. Don't cry when I hit you, oppa."
They donned headgear and mouthguards, stepping into the ring. Tension and strange excitement bubbled in her. Fighting body-to-body with oppa made her heart pound.
"Ready?"
"Anytime."
She opened with sharp jabs, closing in. But he slipped away lightly with steps, like reading her moves.
"What... why so fast? How'd you dodge?"
Her attacks whiffed. Even with martial arts and mana, she couldn't catch him. His waist twisted like a whip, eel-like evasion.
"Focus, Lina."
His left jab grazed her headgear. She stumbled back, off-balance.
"H-how...?"
Unbelievable. Oppa this strong? Not the flower-arranging egeneam. A finished martial artist.
"Again!"
She charged stubbornly. Same result. He danced away, countering sharply. Fast, precise punches, but no intent to hurt—just nullifying and exploiting gaps.
"Make it real. No holding back for your lil sis."
"It'll hurt if it lands."
"Shut up, Hadojin. I'll use mana too."
"Fine. Real fight."

Thud, thud. Guarding with gloves, his feint drew her eyes. Crack!! Stars burst. Head-shaking pain. Left and right hooks followed. Thud! Thud!! Jaw hit, her body floated then crashed.
"...Ah."
"You okay?? Lina??"
Pain mixed with massive thrill.
"I'm fine... more... give me more."
She stood, charging wildly again. Another straight flew. This time, she dropped her guard on purpose, face forward. Smack!!
"Kyaa."
Legs buckled, pussy juice gushed out with a wet fart sound. Insane pleasure made her cunt throb. The hit face ached, but her pulsing pussy vibrated like a motor, even as worried Hadojin looked down and removed her headgear.
# # #
I hadn't expected Harina's martial arts to be this good. Solid mana control, quick moves. She grasped boxing fast. Innate talent for body use. Muscles worked differently. Inherited An Hyeonmi's blood straight up.
I'd underestimated martial arts, but her mana jabs were decent.
Mana spirals when released.
Curious about the principle. Conclusion: spiral. Mana ejected in a helix powers the fist.
Sparring taught me martial arts info too. Today, show her boxing's terror. Her survival odds skyrocket if she learns it.
No mercy for being a girl. Used a fraction of a fraction, club boxing level. Her mana-infused martial arts... honestly, wouldn't hurt much.
To hook her on boxing, just engrave it's stronger. Minimal power straight to the jaw. Enough to KO a grown man.
Oh? Not down? Tough cookie.
Left and right hooks to the chin. Might get called a brutal bro for chin-hooking sis, but necessary to teach boxing.
She floated then dropped. Thought KO, but she shook it off.
What the? Pussy fart and squirt from her crotch? Thought piss at first. Then sudden heat, juices flowing.
"...Ah."
"You okay?? Lina??"
She rose, gloves up.
"Fine... more... give me more."
Charged again. Light straight. Confirmed: dropped guard on purpose, face out. Smack!!
"Kyaa."
Down, legs spread, squirting. Took it deliberately.
Oh shit... Harina's a masochist tank type.