"You can rest tonight." His words brought relief to the sisters—but also a strange sense of disappointment.
"Pick a song, then 'perform' it for me with your bodies. Show me what you understand about the 'spirit of rock.'"
"Perform"?
The sisters froze, then went silent.
Coming from Seiji's mouth, this clearly wasn't going to be anything normal.
"This is absurd!" Seika reflexively protested.
But the moment the words left her mouth, she saw Seiji's calm gaze.
"Oh?" He raised an eyebrow. "Was last night's 'guidance' not thorough enough?"
Seika's body shuddered violently. She remembered how last night she'd been "guided" by all sorts of strange toys until she was crying and begging for mercy, then spent an hour in a daze afterward.
She immediately shut her mouth, not daring to say another word.
Nijika, after a brief moment of shock and embarrassment, spoke up softly.
"S-Sis..." she whispered to Seika, "This... this is part of the 'deal' too, right? Like an actress getting into character... Let's just pick something simple, okay?"
With even her sister defecting, what could Seika say?
She could only nod in humiliation.
They chose a song from that era known as "the sexiest rock song ever"—about a rebellious schoolgirl sneaking into a rock musician's room at midnight and offering herself to him.
The lyrics were full of teasing and innuendo. Just reading them made their faces flush and hearts race.
But under Seiji's gaze, they had no choice.
Nijika changed into a maid outfit that had been "lovingly modified" by Utaha—the fabric barely there. The short skirt barely covered her ass, and every time she bent over, the matching lace panties underneath peeked out. She carried a tray with red wine, swaying her inexperienced hips as she walked to Seiji, then knelt on the carpet, looking up at him with trembling yet seductive eyes as she offered the glass.
Seika was forced into a pair of "absolute territory" thigh-highs courtesy of Eriri, along with a tight black t-shirt that barely covered her ass.
She stiffly imitated the "rebellious rock girl" from the lyrics, straddling Seiji's lap with her arms around his neck. Through the thin fabric, she could clearly feel the hard muscle of his thighs, the alarming heat radiating from him, and something even more threatening pressing insistently against her through their clothes.
"Continue." Seiji issued commands like a cold director.
Nijika trembled as she extended her small pink tongue, imitating the lyrics by licking a drop of red wine from the corner of Seiji's mouth. The alcohol-tinged masculine scent made her head spin and her body go weak.
Seika, under the man's commanding orders, was forced to lower her head and kiss him with lips still cold and defiant.
At first it was just a stiff, fleeting touch. But Seiji wasn't satisfied.
He reached out, gripped the back of her head, and deepened the kiss with savage intensity—prying open her teeth and plundering the sweetness and wetness of her mouth.
Seika's body instantly went limp. Like a fish out of water, she clung helplessly to the man devouring her, making meaningless whimpering sounds.
When the long, almost suffocating kiss finally ended, she collapsed weakly in his arms, gasping for air, her eyes hazy with confused desire.
And where the t-shirt failed to cover—shamefully slick.
Nijika, forced to watch from her knees, felt her own body growing strange. Unfamiliar heat pooled in her lower belly, making her squeeze her thighs together.
That night, the sisters used their innocent yet tempting bodies to "perform" that sexually suggestive rock song from start to finish—three times over.
They used every part of their bodies to service the man.
And helped each other along the way.
When Seika was forced to kneel and watch her little sister struggle to fit him in her small mouth while a hand roamed freely over her own body, she felt an indescribable shame and taboo thrill.
And when Nijika was made to "taste" her sister's body right after it had serviced Seiji—that complex blend of masculine and sisterly scents blanked her mind completely.
Only when both were utterly exhausted did the "performance" finally end.
...
The next day, Seiji unexpectedly announced he was hosting an "afternoon tea gathering."
When the Ijichi sisters arrived in the living room, they found Utaha and Eriri already waiting.
Seeing these two "accomplices" who had once helped restrain her, Seika's face flashed with anger.
At nearly thirty, facing these two girls younger in both age and appearance, she felt like an elder.
And yet this "elder" had been toyed with by two juniors.
"Hmph!"
Seika snorted coldly and looked away.
Nijika, being closer in age, quickly started chatting with Eriri and Utaha.
The stiff atmosphere eased slightly.
But Seika remained on the outside.
Until Eriri complained: "Honestly! Seiji stood me up again! He promised to go buy a new drawing tablet with me today!"
Utaha added from the side: "Who knows which little fox he's been lured away by this time?"
The words "little fox" hit a nerve with every woman present. A strange atmosphere began to spread.
Its name was solidarity against a common enemy.
Nijika joined in with a quiet complaint: "Exactly... Seiji's such a playboy."
Three of the four had spoken up.
All eyes turned to the silent Seika.
She couldn't help voicing what was in her heart, squeezing three vicious sentences through her teeth:
"He's a complete and utter bastard!"
The living room went quiet for a moment, then erupted in silver-bell laughter.
Eriri doubled over. Utaha couldn't help covering her mouth to hide her smile. Nijika looked at her sister with admiration.
In that instant, Seika felt like the heavy stone that had been crushing her heart for days had finally cracked open, just a little.
...
Outside.
Seiji had naturally guessed that the four women were happily gathered together "denouncing" him.
"Perfect."
He sipped his coffee, savoring the rich aftertaste.
"A common 'enemy' is essential for building friendly relationships."
"By badmouthing me together, they comfort each other and come to understand one another."
"A self-regulating, stable harem ecosystem has begun to take shape. No need to worry about fires breaking out."
...
After days of "roleplay" and "artistic guidance," the Ijichi sisters' resistance had crumbled like a sandcastle battered by waves.
Their bodies had long betrayed their wills—even beginning to seek pleasure on their own during Seiji's creative torments.
Seiji was very satisfied with this.
"Time for the final step." He murmured to himself. "Completely shatter their pride!"
His eyes gleamed with excitement.
...
The plan started with Seika.
Using "discussing the next development phase of the Shimokitazawa Rock Alliance" as an excuse, Seiji called Seika alone to a newly purchased luxury apartment.
Seika assumed it was another one of his games.
But the moment she stepped inside, the door behind her closed silently.
Click.
Seika tensed.
"S-Seiji?" she called out tentatively.
No answer. She was alone in the room.
Then the four walls suddenly lit up—massive high-definition screens. They began playing footage that made her face burn with familiarity.
There she was, the first time in the STARRY office, struggling with fury and humiliation as she was forcibly taken.
There she was later, in various corners of the apartment, being toyed with in every way imaginable—cursing him as a "scumbag" while her body honestly responded.
And from just a few days ago—that humiliating "joint guidance" displayed mercilessly. On screen, she and Nijika made the same suppressed, broken sounds under Seiji's control...
"You... you bastard! Pervert!" Seika's face was red enough to bleed.
She spun around to grab the door handle, only to find it locked.
"Let me out! Seiji! Get out here!"
Just then, metal restraints descended from the ceiling.
Before Seika could react, her limbs were bound and pulled tight.
She was secured in an inescapable position on the long chair in the center of the room.
"Bastard! What are you playing at now?!"
She struggled violently, her unease growing stronger.
Then another mechanical arm descended slowly, its end holding something she knew all too well—the ball gag used to silence her.
"Again...?!" Seika's protest became a muffled whimper, full of resistance.
Cold metal touched her warm lips.
With a soft mechanical click, the symbol of silence and submission was locked firmly in Seika's mouth.
She couldn't form a single complete word anymore. She could only glare—glare at the empty ceiling above.
The "neglect play" had begun.
...
About half an hour later, Nijika received a call from Seiji.
"Nijika, come to a new place. I've prepared a fun surprise for you." His voice was warm and tempting.
"Okay, Seiji!" Nijika had no suspicions.
She was used to pleasing him by now.
...
After making her way there.
Nijika arrived at the new apartment where Seiji was waiting.
"This is my new place. I've made some special modifications." Seiji said casually—actually using system powers, military-grade safe house tech, to make alterations.
"There's a 'sister' of yours already inside."
As he spoke, Seiji produced a soft black silk blindfold and smiled at her. "But her identity is a secret for now. Close your eyes and put this on first."
"Okay." Nijika nodded obediently, then closed her eyes and let Seiji secure the blindfold.
She didn't think much of it.
Any of the girls in the harem could be considered her "sisters."
So Nijika didn't immediately think of her actual sister, Seika.
"All set." Seiji's voice came.
As darkness enveloped her vision.
Nijika's other senses became sharper than ever. She could smell Seiji's familiar scent, feel the warmth of his hand holding hers.
"She's pretty stubborn, so I'm hoping Nijika can help me 'bully' her a little." Seiji said with feigned helplessness.
"Really?"
Nijika blinked beneath the blindfold, then patted her chest confidently: "Leave it to me!"
"Good. I trust Nijika the most." Seiji said.
Nijika smiled wryly at that.
She said nothing more.
She let herself be led into the room.
Completely unaware that the moment she entered, Seika—bound in that humiliating position on the chair—had gone wide-eyed.
What are you planning now? Seika's glare burned into Seiji.
Seiji ignored her, leading Nijika to beside the chair.
Then, right in front of Seika, he removed Nijika's clothes one piece at a time.
Her slender, delicate body trembled slightly with anticipation and shyness.
In the darkness, Nijika could only feel Seiji's hands roaming over her bare skin, igniting small fires everywhere they touched.
No foreplay needed. None required.
When he lifted her by the waist, Nijika was already prepared.
The next moment—he thrust inside.
"Ahh..." Nijika let out a short moan.
Then the familiar, satisfying fullness overwhelmed her.
She couldn't see anything, could only rely on her body's instincts to receive Seiji's storm. She felt like a small boat tossed in a tempest, clinging helplessly to the only "mast" that could give her both stimulation and pleasure.
And all of this, Seika watched from inches away.
For her, it was torture.
If she'd been tormented alongside her sister, fine.
But being forced to just watch—watch Nijika being ravaged by Seiji, her pale body rising and falling in enticing waves—she couldn't bear it.
It was like watching something precious being violated by an outsider.
The wet sounds and slapping flesh were like dull knives sawing at her heart.
Seika trembled with rage.
Behind the gag, she could only make meaningless "mmph mmph" sounds.
Seiji thrust while watching Seika's twisted expression with amusement.
That's right...
Be angry! Be jealous! Hate me! Let all your negative emotions explode!
Then realize you have no choice but to sink!
...
After a long conquest, Seiji released inside Nijika.
She collapsed limply, making only faint, satisfied gasps.
But Seiji's "script" was only halfway done.
"Nijika," his voice was exceptionally gentle, "now the game enters phase two."
"Remember I said there's a 'sister' here? She's a bit shy and won't let herself go. So I need you to 'guide' her."
Still blindfolded, Nijika raised her head in surprise. "She's here?"
"Yes." Seiji smiled, helping her up and guiding her toward her bound sister. "She's right here. Go on—'comfort' her, 'encourage' her."
Though confused, Nijika had already developed an instinctive obedience to Seiji's commands.
She didn't ask questions, just nodded: "Okay, Seiji. Leave it to me."
She reached out, groping in the darkness.
Soon her hands found a warm, soft female body.
She could feel it trembling violently.
"Don't be scared..." Nijika said softly, like someone who'd been through it all. "It's nerve-wracking at first. But Seiji... he's actually really gentle. Once you give yourself to him completely, you'll feel that pleasure like you're flying through the clouds, just like me."
As she spoke, she gently leaned down to kiss this "shy little sister."
When her lips touched the cold, perforated metal of the ball gag, she paused.
"What... is this?"
"She's so shy she's wearing a 'mask.'" Seiji explained calmly from beside her. "Don't worry about it. Just let her feel your 'sincerity.'"
Nijika nodded, half-understanding.
She parted her lips and slipped her tongue through the gaps in the cold metal.
She touched another tongue—soft, but trembling violently.