The day was dying in dirty shades of orange and gray when Eren Vale sat on a damp log, the heavy leather sack in his lap, and took a deep breath. The forest around him was alive with muffled noises—bugs chirping, wind whistling through twisted branches, the distant crack of some unknown creature dragging itself to its den.
He rolled his neck with a dull crack. Dried mud cracked in plates over his joints, a reminder of the day's fights. His half-lidded eyes reflected only the pale system glow as he opened the mental interface with a single cold thought.
[Mission Rewards]
- 53x Silver Coins
- 7x Gold Coins
- 4x Venom Glands (Worm)
- 9x Giant Worm Hides
- 6x Mutant Rat Tails
- 12x Black Herb
He drummed dirty fingers against the leather sack, each tap rhythmic, methodical.
Good stock. Sells easily. Allows purchase of basic gear or bribes. Versatile use.
Without hesitating, he forced the display of his own status.
[Status - Eren Vale]
[HP: 158 / 158]
[Strength: 8.4]
[Agility: 9.6]
[Vitality: 10.8]
[Intelligence: 13.2]
[Skills: Slime Properties (Malleable Body, Impact Resistance)]
[Bound Monster: Nyssa]
He analyzed the numbers with a bookkeeper's coldness.
Approx. 20% increase since last cycle. Contract still grants partial gain. Slime physical properties maintained. Impact resistance above human baseline.
He cracked his neck again, rolling his right shoulder to feel the elastic stretch in the joint. Even covered in dried blood and dirt, he could sense the weird gelatinous resistance in his tendons—a dirty adaptation, but functional.
Short-term improvement. But inevitable degeneration.
He shifted his gaze to Nyssa.
She was crouched at the base of a tree, arms wrapped around her bare knees, her translucent body rocking gently back and forth. Her large gelatinous breasts wobbled with every movement, and her face lit up with warm reflections whenever she blinked at him.
Eren didn't smile. He stood slowly, his spine cracking grotesquely, echoing through the trees.
"Nyssa."
She jerked her head up, huge eyes shining with devotion.
"Y-yes, master?"
He studied her the way a craftsman inspects raw wood.
"We're going to train."
Her eyes went wide, hesitating.
"T-train?"
"Attack. Containment. Defense."
He moved closer, pointing at a fallen log.
"Imagine it's an enemy. Attack."
She crawled over, hesitant, her wide hips undulating with the movement. She raised her translucent arms—and slapped it with a soft, nearly pathetic sound.
The log didn't move.
She whimpered.
"Sorry... I... I don't know how to use strength right..."
He analyzed the data coldly.
Good elasticity. Limited pressure. No real muscle. No impact proficiency.
"Again."
She tried harder. The sound was wetter. A thin smear of slime dripped slowly down the log.
She lowered her head, the liquid strands of hair falling over her face.
I'm... useless...
He didn't respond. He just filed the result away.
Terrible offense. Useful digestion on contact, but no force to impose. Containment weapon only.
She sniffled softly.
"I'm sorry, master... I want... to be useful."
Too emotional. Lack of useful cruelty, but vulnerable to positive stimulus.
He sighed.
He then noticed something odd in himself. When he stretched to inspect the wound in his palm, the flesh was already less flaccid, less elastic than the day before.
He called her status with a mental impulse.
[Bound Monster: Nyssa]
[HP: 108 / 108]
[Strength: 7.2]
[Agility: 4.8]
[Vitality: 8.4]
[Skills:]
[Advanced Digestion (Contact)]
[Properties:]
[Malleable Body]
[Humanoid Appearance (Human Base)]
[Impact Resistance]
[Affinity: 75%]
20% increase also confirmed. Primary vitality benefited. Strength still low. Affinity dropping. Already lost 15% in two days.
He took a deep breath, holding the air to think more clearly.
Contract with progressive decay. System design baseline. Incentive for paid renewal or...
For a moment, Eren—no, Lee Min-Jae—remembered spending hours reading about contracts in the game. It was a feature as basic as the attribute screens, offered in the initial tutorial. Even the laziest player knew simple contracts didn't need a registry or costly notarization: just mutual consent and a symbolic act to activate.
Affinity loss also reduces inherited properties. Gradual decay. I need a solution.
He exhaled.
I need a way to reinforce the bond without extra cost. Or at least delay the degradation. Otherwise... unviable.
He looked her up and down.
"We need to strengthen the bond."
She sniffled.
"How...?"
"A new pact."
She shrank back.
"Will it... hurt?"
Eren narrowed his eyes.
"Probably. Blood worked before."
She shook her head hard.
"N-no... I don't want... no more blood... it's... it's bad... really bad..."
"But we have to do it. I need you to authorize."
"N-no... I don't want to..."
He breathed deeply, running his thumb over the fresh scar on his palm.
Consent required. Consensual.
He studied her in silence.
"Then what kind of pact do you suggest?"
She bit her translucent lower lip, looking away.
"I-I don't know..."
Eren frowned.
"Saliva?"
She trembled.
"I-I don't like it..."
"Sweat?"
"N-no... I don't... don't have that much..."
He analyzed, eyes sinking like dark wells.
Bodily fluid. Consent. Intimacy. Symbolic ritual.
Suddenly, the answer was obvious.
"Sex."
Her eyes went wide, blushing so hard her blue-green hue swirled into a storm of emerald shades.
"M-master... is it... that direct...?"
Eren didn't look away.
"Yes?"
"Yes... but..."
"Don't consent?"
"No... it's not that... it's just... so fast..."
She curled in tighter, hiding her face between her knees, but didn't say no. Her voice came out muffled, wet, embarrassed.
Eren Vale let out a sigh heavy with boredom as he noticed the intense blush spreading over Nyssa's translucent body. She trembled like a cornered animal, her blue-green skin speckled with darker tones, those big liquid eyes darting everywhere in pure shame.
When he moved closer and tried to push her down onto the damp leaf-covered ground, she pressed her thin, cold, gelatinous hands against his chest, letting out a trembling sound.
"M-master... not here..."
He raised an eyebrow, voice dry as stone scraping earth.
"Why?"
She lowered her eyes, her gelatinous hair spilling over her bare breasts as she pressed them against herself in a gesture of pure modesty.
"It's... too open... I... I can't..."
Eren frowned.
Consent required. Consensual contract won't work by force.
He rolled his eyes with a resigned sigh.
"Then where?"
She pointed, hesitant, toward a denser part of the forest—where thick bushes and a large tree formed a kind of natural nest, the tall leaves making a living curtain.
He analyzed it with the same cold look he used to read server contracts.
70% cover. Reduced visibility. Low ambush risk. Acceptable.
Without another word, he made a sharp gesture with his hand.
"Move."
Nyssa swallowed hard and obeyed, walking ahead with her wide hips swinging in an indecently involuntary way, her bare feet making wet sounds in the soft earth. Eren followed, eyes locked on the narrow waist that moved like water in a leaky container.
When they reached the makeshift shelter, she turned to him, biting her lower lip so hard it almost tore the gel-like flesh.
"H-here... I... I accept."
He dropped the reward sack onto the ground, eyes narrowing to focus on her.
"Good. Now lie down."
Nyssa obeyed slowly, settling into the soft earth, her thin arms hugging her knees for a moment before she finally opened them, offering up her translucent, pulsing body that trembled like jelly with each breath.
He knelt over her, observing the contrast between human skin and her wet, shining surface.
Beginning the pact. Bodily fluid. Mutual consent. Sexual symbolism.
But when he moved in, she bit her lip again, looking away.
"I-I... I don't know... how to do it..."
Eren didn't hesitate.
"I do."
Her eyes widened.
"Y-you...?"
He took a deep breath.
"I know enough."
The truth was, Min-Jae didn't know in practice—only in theory. He'd always been an excellent student, could have gone to medical school if he wanted, but chose a data analyst career instead, because what he truly enjoyed was receiving and analyzing information.
Eren leaned over Nyssa, his mud-streaked hand gripping her gelatinous hip firmly. The consistency was strange—no bones, just a flexible mold that yielded to his squeeze. Nyssa shivered, her breasts flattening and wobbling beneath his weight, a low moan escaping her translucent lips.
"Aah... M-master..."
Eren moved his hips slowly, searching for the right angle, the sticky friction offering minimal but strange, almost addictive, resistance. Nyssa writhed under him, thin arms trying to cling to his neck, her wet eyes pleading.
[Affinity: 78%]
He noticed the increase.
Confirmation. Sexual act = efficient catalyst.
She moaned louder as he deepened the movement, the wet, lewd sounds filling the small shelter of bushes.
"Aah... ahn... m-master... it's... it's going in..."
He let out a low grunt.
"Stay still."
She shook her head frantically, trembling.
"I... I can't... it's... it's too... weird..."
He shifted his weight over her, pushing in deeper. Nyssa let out a broken cry.
"AAH! M-master... more... ahn..."
[Affinity: 82%]
He watched the number climb like a loading bar.
The more intense, the faster the increase. Conclusion: increase intensity.
Without hesitation, he pulled her hip tighter against him, his hands sinking into the translucent flesh and spreading it like soft clay. Nyssa moaned even louder, her breasts molding against his chest, the wet sounds turning obscene.
"AAH! M-master... more... please..."
[Affinity: 86%]
Eren increased the rhythm, his hips smacking against hers with a dull sound mixed with squelching fluids. He felt the viscous friction surround him, squeeze, pull at every inch with both heat and chill.
She was crying out now without any shame.
"AAHN! AAH! M-master! I... I'm... I'm..."
[Affinity: 91%]
He held her tightly, nails scraping the translucent gel and leaving marks that closed instantly. His face hovered inches from hers, sweat dripping onto her forehead.
Need to go faster.
He obeyed his own calculation, driving into her harder until the sound of hips colliding echoed dully in their leafy shelter. Nyssa twisted like she had no spine, her whole body molding to engulf him.
"AAAH! AAHN! M-MASTER!"
[Affinity: 97%]
He growled low, teeth gritted, gaze locked on her like a target.
"More."
He buried himself to the limit, the wet sounds now almost a guttural roar. Nyssa screamed, mouth open, face contorted in pleasure.
"AAAAAAAAHN!"
[Affinity: 100%]
He felt her entire body convulse violently, sticky contractions gripping him hard, like she was trying to swallow him completely. A sudden heat shot up his spine, making it tingle.
He didn't hold back. He thrust one last time with a deep groan, his body shuddering as he released everything inside her, the heat mixing with the cold gel in brutal contrast.
She kept screaming, the sound echoing through the bushes.
"AAHH! M-MASTER! AAH!"
[Affinity: 110%]
The numbers settled as they both writhed in one final spasm.
For long seconds, there was only silence, save for their ragged breathing mixed with the wet squelch of fluids settling.
Nyssa finally relaxed, her thin arms wrapping around his neck, her voice breaking in sweet little sobs.
"M-master... I... I love you so much..."
Eren stayed quiet, eyes fixed on some indefinite point above her, his chest rising and falling with effort.
Contract renewed. Affinity exceeded. Properties secured.
He exhaled slowly.
Efficiency: maximized.
But he said nothing. He just remained there, still inside her, feeling the wet heat pulsing around him while she sighed in relief—and embarrassment.
Eren Vale stayed there for a few more seconds, feeling his heavy breathing cool into burning cold in his lungs. Nyssa lay beneath him, still trembling as if trying to remember how to control her own body.
He slowly pushed himself back, letting out a long, dragging sigh, and mentally summoned the system interface. The borders of the display flickered in a pale, almost mocking glow.
[Affinity: 109%]
He didn't move. Just watched the static number, mind working like a cold circuit.
Dropped 1% since climax. Degradation rate seems accelerated post-sex.
The memory of that peak was still fresh—Nyssa screaming, writhing around him like a creature without solid structure, her translucent body molding to squeeze him at every angle. The contract had fed off it. He wasn't blind to what was happening.
Sex raises affinity faster. But also consumes it faster.
He wiped his sweaty forehead with his forearm, smearing more dried mud across his face.
Theoretically, I can maintain high levels with frequent sex acts. But not without a cost.
He lowered his gaze to Nyssa.
She was still panting on the damp bed of leaves, translucent legs spread at obscene angles, wide hips lifting and falling in an unsteady rhythm. Her massive gelatinous breasts were spread across her chest, still trembling with involuntary spasms. Nipples were stiff from pure excitement. Her expression was total surrender—half-lidded eyes, cheeks glowing darker, thick lips parted in a lazy, satisfied smile.
She let out a low, wet moan, like she had no control left.
"Nnngh... m-master..."
He analyzed her without any visible emotion.
Emotional status: completely surrendered. Vulnerable to commands. Highly dependent.
He pulled up another screen.
Flexing his fingers, he felt the bones and tendons shift with an inhuman elastic creak.
Elasticity increased. Better defensive response. Potential offensive use with creative angles.
But then a faint notification appeared at the bottom of the interface.
[Karma: -2]
[Alert: Reputation Falling]
He raised an eyebrow, pupils narrowing.
Karma. Moral impact. Systemic alignment indicator. Could those three who ambushed us have screwed me? Possible, but if so why only warn now?
He frowned, dredging up old memories of nights spent reading guides and spreadsheets.
Maybe... gaining monster properties... loss of humanity. The system punishes morally? But why didn't it trigger with the blood pact?
He breathed deep, smelling the damp, sour earth.
Maybe a hidden penalty to prevent spamming?
Nyssa's moan interrupted the thought.
"M-master... still... still... want more..."
She squirmed with soft spasms, hips trembling and slick with shining fluids, gelatinous legs spread in total vulnerability. Her face seemed caught between ecstasy and shame.
Eren looked at her the way one might examine a bomb.
She's completely vulnerable. Easily conditioned. But dangerous to make this the norm. Increases dependence. Creates emotional expectation. Reduces rational efficiency.
He snapped his fingers, annoyed.
Need more data. Sex might be an explosive method of raising affinity, but with a high cost: accelerates wear. Might have usage limits. Karma might drop faster if abused.
His gaze swept the surroundings. Trees bent like specters in the wind, shadows cast in chaotic patterns over the bushes that hid them. It was an improvised, precarious spot.
Staying here isn't viable. Too exposed.
He looked back at Nyssa. She was panting on the ground, thin hands pressed to her own breasts, fingers sinking into the translucent flesh that shaped itself almost pornographically. A thick string of fluid dripped from her still-pulsing sex. She let out small, almost singing moans.
"Aaah... nh... master... so good... do... do it again..."
He sighed.
Consent too easy. Emotionally unstable.
He prodded her with his foot.
"Enough."
She blinked, those huge eyes filling with tears that didn't fall but dissolved into her surface.
"B-but... I... I want to..."
He ignored the plea as he analyzed her.
First priority: cover. Too visually striking. Body is provocative. Explicit nudity. Will draw unwanted attention in town.
He looked around. Nothing but wet leaves, twisted branches, moss.
Need to improvise. Technically could buy clothes, but that exposes the deal. Better something crude first.
He crouched, ripped up a bundle of wide leaves and dry moss, and tossed it to her with a curt gesture.
"Cover yourself."
She blinked.
"Eh...?"
"We're going back to town."
Nyssa bit her lip, embarrassed, and began pressing the leaves against her damp body, trying to at least hide the massive breasts and narrow waist. Each movement made her breasts jiggle almost insultingly, the translucent flesh molding around the improvised cover in an erotically grotesque way.
She flushed—a darker blue spreading over her entire body.
"O-okay... sorry, master... I... I just wanted to make you happy..."
He sighed, cold.
"Understood. Now let's go."
She got up with difficulty, still moaning softly like her entire body was reacting to the recent sex, legs unsteady. He ignored it.
As they left the improvised shelter behind, the wet sound of her bare feet in the mud mixed with her embarrassed sobs.
Eren kept his eyes fixed on the path ahead.
Test successful. But hidden costs. Affinity rose to 110%, but already dropped to 109%. Accelerated wear after sex. Hypothesis: higher intensity = higher spike, but also higher consumption. Limit still unknown. Karma negative suggests moral penalty. Direct relation to loss of humanity? Only triggers with sexual contracts?
He cracked his neck with a dull pop.
Need more tests.
But he didn't say anything out loud. He just kept walking while Nyssa stumbled behind him, trying to cover her provocative nudity with the improvised leaves—and still letting out low, embarrassed moans that made the forest feel alive with damp, sticky shame.