Eternal Spire

"Today is Soyoung's last training session."

At Jin Seoyun's words, Park Soyoung swayed her hips from side to side as if she would wag a tail if she had one.

"Woof♡ Pant... Pant♡"

Jin Seoyun smiled in satisfaction at her reaction.

"Looks like Soyoung was looking forward to it too?"

Jin Seoyun said, gently stroking her head. At his touch, Park Soyoung moved closer and rubbed her head against his hand.

"Get on the bed and lie down so your belly is visible. I've prepared something special."

"Woof♡"

Park Soyoung immediately got onto the bed. And like a dog waiting for its master's touch, she spread her legs and lay down, exposing her belly.

Jin Seoyun slowly approached the bed and gently stroked her lower abdomen. At his touch, Park Soyoung's body trembled with tension and excitement.

"I found a very special magic in the 3rd floor dungeon. Aren't you curious what kind of magic it is?"

"Woof...!"

"It's a magic called 'Yin Mark Engraving'. If a uterine tattoo is engraved on your lower abdomen, everything-your memories, body, and thoughts-will belong to me."

Jin Seoyun continued speaking, drawing circles around her navel with his finger.

"Once it's engraved, it won't easily disappear. You'll be mine forever."

A subtle tremor was detected in Park Soyoung's eyes. It was hard to tell if it was fear or anticipation. But she still didn't move from her spot, exposing her belly even more.

"Woof..."

At her small sound, Jin Seoyun smiled. He took a small crystal from his pocket. The pink-tinged crystal was subtly pulsating as if alive.

"This is the crystal containing the Yin Mark magic. When I place this on your belly, the magic will begin."

Jin Seoyun slowly placed the crystal on Park Soyoung's navel. As the cold crystal touched her skin, her entire body trembled subtly.

Light flowing from the crystal began to seep into Park Soyoung's skin. At first, faint pink lines appeared around her navel. Gradually, the lines became clearer and wider, beginning to form a complex pattern.

"Huuugh..."

A moan escaped Park Soyoung's lips. Every time the pattern was drawn, a shiver ran through her entire body.

"Bear with it. It'll be over soon."

Jin Seoyun said, stroking her hair. His eyes were fixed on the glowing pattern.

The pattern grew increasingly complex. What started as a simple circle gradually became a pink-tinged design engraved on her lower abdomen. The pattern expanded from her navel, spreading out to encompass her entire waist and lower abdomen.

"Aah... Uugh..."

Park Soyoung's body trembled greatly. Her eyes blurred, and her consciousness seemed to waver. As the pattern was drawn, her mind grew increasingly hazy.

Finally, as all the light was absorbed into her body, the pattern on her lower abdomen was completed.

"Haa... Haa..."

Park Soyoung lay on the bed, breathing heavily. Her eyes were half-closed, and saliva drooled from the corner of her mouth.

"The engraving is complete. How does it feel?"

Jin Seoyun slowly traced the pattern engraved on her lower abdomen with his finger. Every time his finger moved along the pattern, Park Soyoung's body reacted. She twitched as if directly connected to his finger.

"It's strange... but I'm happy♡"

Her gaze was different from before. It held a deeper sense of submission.

"Now you are completely mine. Your body, your mind, your very soul... all are my possessions."

Jin Seoyun stroked her body with a satisfied smile. Everywhere his hand touched, Park Soyoung's body reacted hotly.

"Now, stand up."

At his words, Park Soyoung's body rose, regardless of her own will. Her eyes were filled with surprise, but she soon accepted it happily.

"Sit."

Park Soyoung sat like a dog.

"Paw."

She raised her right hand like a front paw.

"Who are you?"

Park Soyoung raised her head and looked at him.

"I am my Master-nim's bitch."

Jin Seoyun stroked her hair and smiled in satisfaction.

"What do you desire now?"

"I want to offer my virginity to Master-nim."

Park Soyoung's voice trembled with anticipation.

"Then, before we begin, shall I examine Soyoung's pussy?"

Facing Park Soyoung, Jin Seoyun ran his palm down her pussy lips.

Past the soft pussy lips that no one had ever been allowed to touch, he thrust his finger inside her pussy.

-Squish!

"Aah... Ang...♡"

"A virgin pussy's tightness, indeed."

Jin Seoyun poked her pussy sufficiently and withdrew his finger. He brought the finger, soiled with her vaginal fluid, to Park Soyoung's mouth. She immediately licked the soiled finger.

"Haa-eup... Chomp..."

"Now, shall I take your virginity?"

Jin Seoyun lowered his pants and pulled out his already hard, erect cock.

"This is the cock that will graduate you from virginity, so engrave it in your mind."

"Yes♡"

Jin Seoyun positioned himself between her legs, aligning the tip of his cock with her pussy. And in an instant, he thrust it in.

"Aah... Master-nim..."

Park Soyoung's voice trembled sweetly. Jin Seoyun brought his lips to her ear and whispered.

"How does it feel to become my bitch?"

"I'm so happy... Aah..."

Jin Seoyun didn't give her time to adjust and immediately began to move.

-Thwack, Thud! Thud!

"How is it? Feels good, doesn't it?"

"Pant...♡ Hah...♡ G-good..."

Jin Seoyun thrust his hips while attaching chained clamps to both of Park Soyoung's nipples.

"Attach the remaining one to your clit yourself."

"Yes... Hngh...♡"

Park Soyoung picked up the last clamp with trembling hands. Her fingers descended, searching for her already swollen clitoris.

"Uugh... It's hard... because it's moving..."

"You still have to do it. It's an order."

At Jin Seoyun's words, Park Soyoung tried again to attach the clamp. And finally, she clamped it onto her clitoris.

"Haaak!"

Her body trembled violently from the sudden rush of pleasure.

"Well done. Now all three spots are complete."

Jin Seoyun gripped the chains connected to the clamps in his hand. The chains were connected in a Y-shape, so pulling them once would stimulate all three clamps simultaneously.

"Let's see just how much you can feel, shall we?"

Jin Seoyun tugged lightly on the chains. As the three clamps were pulled simultaneously, she trembled with pleasure.

"Hwaaaang!"

Park Soyoung's body arched like a bow. Satisfied with her reaction, Jin Seoyun smiled and pulled the chains harder.

"Ha-euk! Master-nim! It's too... strong!"

"Not yet."

This time, Jin Seoyun picked up an anal bead and thrust it into her asshole.

"Aaaang♡"

Park Soyoung's body was now completely dominated by pleasure. Her pussy strongly tightened and contracted around Jin Seoyun's cock. The Yin Mark engraved on her belly began to glow brightly.

"I'm coming! Master-nim! Please allow me! Hwaaang!"

"You may come."

Jin Seoyun gave a final strong tug on the chains and simultaneously thrust his cock deep inside.

-Paaang...!

"Oh-go-ohk...♡"

***

Park Soyoung and Jin Seoyun intertwined their bodies until the late hours of dawn.

"Haa-euh...♡"

Semen was oozing from her mouth, asshole, and pussy.

"Jjop... He-eup...♡"

"Are you going to keep spilling semen?"

"S-sorry...♡"

He, who had been watching her, suddenly turned towards Tia, who had just entered.

"Seoyun-ssi, a problem has arisen."

"A problem?"

"Yes, parties outside the city were attacked."

Jin Seoyun's face hardened at Tia's report.

"The damage?"

"Fortunately, there were no fatalities or serious injuries."

"That's strange. Did you find out who the attackers were?"

"We couldn't identify them precisely, but one of the attackers was said to be carrying the shield and weapon Kim Minsu used."

Jin Seoyun's eyebrows furrowed deeply.

"Looks like Kim Minsu is alive."

"I think so too."

"Hah, I let my guard down a bit, and they're doing a sloppy job."

Tia immediately bowed her head and apologized.

"I'm sorry... I should have managed things more thoroughly."

"That's enough for now. Are there any other identifiable traces besides Kim Minsu?"

"I sent my snakes to investigate the scene, and a familiar magic pattern was found."

"A familiar magic pattern?"

"Yun Jaeho. He also appears to have been involved in this attack."

"I thought he'd just hide and live like a coward after running away, but it seems he's been plotting something quite interesting."

Jin Seoyun fell into thought for a moment. After a heavy silence, he slowly opened his mouth.

"Their objective must be to rescue Park Soyoung, right?"

"Probably. And there's a high possibility of other objectives..."

Tia paused for a moment, then continued.

"I think they're targeting Seoyun-ssi. And there's also a high possibility that there's a force assisting Yun Jaeho."

"I wonder who it could be, aiming for my back like a rat."

"The most suspicious one would be Austin. He couldn't do anything in the 3rd floor boss battle, after all."

"Well, we'll find out who it is eventually... If their objective is to rescue me and Park Soyoung, then they must be waiting for me to come out?"

"Yes, what will you do?"

"Perfect timing, then. I wanted to test the Yin Mark."

Jin Seoyun twisted the corner of his mouth as he looked down at Park Soyoung, who was still sucking his cock.

"Soyoung-ah."

Park Soyoung stopped sucking his cock and looked up at Jin Seoyun.

"Yes, Master-nim."

"Your old comrades are trying to take you away."

Park Soyoung's face was expressionless. Due to the effect of the Yin Mark, the concept of 'comrades' no longer existed for her.

"What should I do, Master-nim?"

Jin Seoyun slowly stroked her hair.

"I'm going to test the power of the Yin Mark. Tomorrow, I'll leave the city, and you'll stay here. When they come looking for you, you'll temporarily return to being the old Park Soyoung."

Jin Seoyun whispered something into her ear. Every word he spoke was engraved in her mind as if branded.

"I will carry out your instructions."

"Good. You must not fail."

"Yes, Master-nim. I will never disappoint you."

Jin Seoyun smiled in satisfaction. Then he turned his head to Tia.

"Spread the rumor that I'm leaving the city and let them know this fact. They won't miss this opportunity."

"Understood. But can we just let that woman go like this? What if they discover Park Soyoung's Yin Mark and release it...?"

"Well, we can just retrieve her later. It's important to find out how useful the Yin Mark's effect truly is."

Tia reluctantly nodded, but her eyes still held a hint of doubt.

"What if... a variable arises in the plan?"

Jin Seoyun traced the Yin Mark engraved on Park Soyoung's belly with his finger.

"That would just be another amusement."

He lightly kissed Park Soyoung's lips.

"And... if the Yin Mark's effect is weaker than I expected, I can just improve it."

Jin Seoyun's eyes gleamed coldly.

"But if the Yin Mark works as I intend..."

He continued, a cruel smile on his face.

"Yun Jaeho and Kim Minsu will lose hope in the most horrific way. What if Park Soyoung, whom they rescued, betrays them with a single command from me, and even tries to kill them? How despairing would that be?"

Tia admired Jin Seoyun's plan. It was a method that went beyond simply defeating enemies; it completely destroyed them mentally.

"I understand."

Jin Seoyun laid Park Soyoung on the bed and placed his hand on her lower abdomen. At that moment, the Yin Mark engraved on her belly subtly glowed, pulsating like a heart.

"From now on, you will return to being the Park Soyoung from before the conditioning. And leave the memory of being raped by me in your mind. And..."

Park Soyoung's eyes gradually lost focus and became blank.

***Service***