The Underworld, Starting with Debt

"It seems I've been too gentle with you all along..."

Despite it being the height of summer in June, the office felt eerily cold, as if it were the winter solstice.

......

"Ah Zhi? You call her that so affectionately."

"Hehe, I didn't expect that the famous and aloof beauty Sen Sai also has a special relationship with Zhi Jun."

"But that makes sense. Shi-kun managed to win Reina over without me, her 'best friend,' not at all, right, Shi-kun?"

Rina Tsushima glanced wistfully at Ito Koshito, who was lying on the bed beside her, his hands bound by handcuffs.

"Mmmmm..."

Ito Koshino let out a muffled sound, and a piece of black tape was also stuck to his mouth.

"Rina, let me go!"

On the sofa beside the bed, Kurashiki Rena pouted. She and Ito Koshitoki were also handcuffed by Tsushima Rina.

They didn't resist when Tsushima Rina handcuffed them, knowing she was angry, and went along with her.

"Hmph! Rena, you really are my best friend! You cheated on me, and you didn't even tell me afterwards!"

"Well, there's nothing we can do about it..."

With a guilty look in her deep blue eyes, Kurashiki Reina averted her gaze from Tsushima Rina's angry stare. At that moment, Kurashiki Reina resembled a timid, lop-eared rabbit.

"Too cunning! Humph, today, just watch as I toy with this womanizing slut until she's broken!"

"Um, Rina, Atobe has amazing stamina, like a bull. Every time... my butt... hurts..."

"Hmph, you think I'm like you? I exercise regularly."

Rina Tsushima was dismissive. Although she knew that Koshito Ito had great stamina, she wondered if he could work non-stop for hours on end like a pile driver.

Even so, she was confident in her physical strength and would not beg for mercy like the weakling Rena.

No way! No way! Someone actually cried like that? What a nobody!

Filled with inexplicable confidence, Tsushima Rina once again gave Kurashiki Reina a haughty look.

"Hey, what kind of look is that! Tsk, you'll get what's coming to you later. Even if you beg me, I won't help you!"

"Haha~"

Ignoring Kurashiki Reina, the focus now is on Ito Koshitomo.

Her loose pink hair swayed in the dimly lit room, giving her a slightly alluring look. Tsushima Rina pursed her glossy pink lips, her heart pounding wildly.

In the darkness, Ito Koshitomo's eyes were unexpectedly bright, making her feel exceptionally nervous and shy.

His handsome face, illuminated by the dim light, looked incredibly charming, making her dizzy with admiration.

"What are you looking at!"

Rina Tsushima said coquettishly, even a bold and glamorous girl would feel shy doing something like this for the first time.

Especially someone like Ito Koshitomo, who isn't a pure-hearted boy but rather a predatory type.

He made no attempt to hide his burning gaze, as if flames were burning deep within his pupils.

His eyes were fixed on her, filled with longing.

Her smiling eyes seemed to say, "Rina, are you shy?"

The heat made her feel hot all over, as if she were on fire.

"What...what are you doing? I told you, don't look at me like that!"

With a blush, Rina Tsushima looked away shyly, but her eyes caught sight of the eye mask on the bedside table, and she immediately became interested.

"Humph!"

Picking up the blindfold, Tsushima Rina forcefully put it on Ito Koshino despite his resistance.

As his vision was plunged into darkness, Itō Koshitomo's senses seemed to be heightened all at once, becoming much more acute.

He could almost feel Rina Tsushima's smug, arrogant smile, clearly hear her soft panting, and smell the scent of her shower gel...

These thoughts raced through Ito Koshitomo's mind. His body began to heat up and quieted down, like the mist hidden in the stillness before a storm, ready to erupt at any moment and deliver a devastating, torrential blow to Tsushima Rina...

......

"Okay, next..."

Gently licking her red lips, Rina Tsushima smiled radiantly and slowly leaned down.

According to the instructions on the DVD, I should be kissing Zhi-kun~

This is the one I know best!

With practiced ease, Tsushima Rina moved closer to Ito Koshichi's cheek, her slender fingers gently caressing Ito Koshichi's Adam's apple, the sweet fragrance emanating from her breath teasing Ito Koshichi's senses.

Without the interference of Ito Koshitomo's gaze, Tsushima Rina reverted to her usual bold and alluring self, behaving like a daring and rebellious stunner.

She ran her fingertips across his neck and ripped the tape off Ito Koshito's mouth.

Ito Koshitomo did not interrupt, quietly enjoying the ambiguous silence between the two.

Soft lips kissed Ito Koshino's earlobe, warm, damp silver threads wetting his earlobe, and then slowly kissed along his face until they reached his sensual thin lips.

She only touched him lightly before leaving, leaving Ito Koshino's breath almost solidifying in his nostrils.

With a slight lift of her beautiful eyes, Tsushima Rina looked at Kurashiki Rena to the side. Kurashiki Rena was secretly watching her, sitting in a duck-like position, her round thighs pressed tightly together at some point.

With a seductive smile, Tsushima Rina's inner pleasure had reached its peak. She extended her tongue and lightly swept it across her lips, looking at Kurashiki Reina with a smile. Seeing Kurashiki Reina snort coldly and glance away, yet unable to resist stealing a look back, her body trembled with excitement.

'This is so, so delightful!'

'Later, I'll help Rena wash her face too. I really want to see what kind of expression she'll make.'

......

The room was dimly lit, like a gloomy place with dark clouds gathering before it rains. The stuffy air made people restless, sticky, and suffocating.

The warm, soft touch spread across his lips, and the girl's sweet scent lingered between his teeth, making Ito Koshino want to make an intimate interaction, but the crackling of the handcuffs reminded him.

You are the one who has been manipulated.

The pink-haired hottie enjoyed the thrill of being in control, like a lazy cat, her soft, voluptuous body stirring restlessly as she slowly explored a comfortable sleeping spot in the warm embrace.

With her deep blue eyes brimming with tears, Rena Kurashiki couldn't help but be captivated by the live teaching that the theoretical master Rina Tsushima was about to deliver.

Her black and red pleated skirt swayed gently with her slender waist, and the rounded curves of her snow-white legs were faintly visible. Her snow-white, smooth thighs were soft and elastic, and when her slender calves, encased in black stockings, moved, they rippled and trembled incessantly.

"Hmm~"

Rina Tsushima let out a soft moan. She opened her blurry eyes and saw Ito Koshitoki's face, which was covered in sticky silver threads in a disheveled state.

Behind her, Rena Kurashiki's fiery gaze was fixed on her, making her incredibly excited.

To fully enjoy the stimulation, Tsushima Rina instantly twisted her body, her alluring face now facing Kurashiki Reina.

"Haha~"

He gave an ambiguous smile and buried his head.

"Rena, I think you haven't tried this before. Watch carefully, the tutorial is about to begin."

In the darkness, Ito Koshitomo seemed to smell the scent of the sea.

......

After half an hour.

"Pfft-"

Startled, Kurashiki Rena quickly closed her eyes, the wet and slippery sensation covering her delicate cheeks.

a long time......

Rena Kurashiki collapsed weakly onto the sofa.

Feeling the thick, unpleasant sensation on her face, she couldn't help but lick her lips with her pink tongue. It tasted salty, and it didn't seem so bad after all...

No! Now is not the time to think about these things.

"Rina!"

Kurashiki Rena trembled with rage, roaring furiously, her long eyelashes heavily wet, as she struggled to lift them.

"How dare you, how dare you..."

"Gulu~"

"I'm sorry, I'm sorry, Rena, I didn't mean to either, it's all Zhi-kun's fault!"

With her hands lightly resting on her chin, a few drops of liquid trickled down her lips... Rina Tsushima smiled mischievously, her tone flippant, revealing no sincerity in her apology.

"You! Cough cough cough..."

With her mouth wide open, Kurashiki Rena was about to angrily rebuke Tsushima Rina when something suddenly poured into her mouth from who knows where, causing her to cough uncomfortably.

"There are still some!"

With a surprised smack of her lips, Tsushima Rina looked at Kurashiki Reina with even more wicked intent.

"Haha, take this, Rena, biu~biu~"

"Stop it right now, you idiot!"

By the time the magazine was emptied, the Rena had sunk into the white ocean.

"Hee hee hee......"

Rina Tsushima sat back with satisfaction, grinning from ear to ear. She still vividly remembered what had just happened, and this feeling was simply wonderful!

But as she laughed, she couldn't stop smiling.

"Hmm~!"

......

'So this is what it feels like...'

Her pink eyes narrowed slightly, revealing a deep well of desire within. Tsushima Rina stood up unsteadily, instinctively pressing her thighs together beneath her short skirt, and turned around somewhat awkwardly to look down at Ito Koshitomo.