High School DxD:Milking System World

After school, Issei and his friends, Matsuda and Motohama, exited the classroom together.

Although Jin and Issei usually went to school together, they often returned home separately—mostly because Issei had "extracurricular activities" with his friends from the infamous Perverted Trio. Today, however, Jin also had plans of his own—with Aika, the girl he had invited that morning.

As if summoned by his thoughts, Aika approached his desk with a bright smile that immediately drew jealous stares from the other girls in the classroom.

"Hey, Jin! Let's go to the arcade!" she announced loudly, making sure everyone could hear.

Her voice was intentionally loud—she wanted to spread the news that she was going to the arcade with Jin, alone.

Jin, though not particularly fond of attention, couldn't deny his popularity at Kuoh Academy. Only four others shared his level of fame—the three Great Onee-sama, composed of Rias Gremory, Himejima Akeno, and Shitori Sona, as well as Kuoh's "Prince," Yuuto Kiba. Unlike them, Jin had no fancy title—mainly because he had declined one. Yet, his popularity remained just as high.

So, it was only natural for Aika to feel thrilled when Jin suddenly invited her out.

Jin looked up at Aika. Despite her reputation as the "Erotic Girl," Aika was actually quite attractive. If she paid more attention to her appearance and conduct, she could easily rival some of the school's beauties.

That was precisely why Jin had chosen her as his first target—not only were they the same age, but her perverted nature also made her a perfect candidate. Plus, she clearly had feelings for him, which eased his conscience—at least somewhat.

"Sure, let's go," Jin replied with a smile, grabbing his bag and standing up.

Unbeknownst to Aika, she was already dancing in the palm of his hand.

Jin, despite having never gone on a date before, was naturally skilled at making his companion feel at ease.

They arrived at the arcade and spent their time playing various games. Their first stop was the crane game.

"Jin, to the left! Yeah, a little more… Right there!" Aika whispered excitedly, pointing at a cute shark plushie.

"Got it," Jin replied, lowering the crane with perfect timing. It grabbed the plushie, lifted it, and successfully dropped it into the prize chute.

"Yes! We got it!" he said, retrieving the plushie and handing it to Aika.

"Thank you!" Aika beamed, hugging the toy tightly.

They continued playing different games, but Jin deliberately spent extra time on a dancing rhythm game that required a lot of physical movement. His plan was simple: tire Aika out, offer her a massage, and then use his Golden Hand skill to set the stage before pulling her into the Milking Room.

Strangely, Jin instinctively knew how to use his skills without practice. Even while they were in the arcade, he discreetly activated Lactation Fog, releasing the invisible pink mist into the air. The fog's effects seemed to be working, as Aika blushed every now and then whenever Jin stood close to her.

After spending enough time at the arcade for Aika to become visibly tired, Jin suggested taking a break at a nearby park.

Since the sun was beginning to set and most students were heading home, the park was relatively empty—making it the perfect location for Jin's plan.

"Let's sit over there, shall we?" Jin pointed to an empty bench near the park's edge, where a dense forest provided a secluded backdrop.

"Good idea. I'm a bit tired from all those games," Aika replied, still hugging her shark plushie. "Plus… I feel kinda weird—especially around my chest…" She tugged at her collar, peeking inside her shirt with a faint blush on her cheeks.

Hearing that, Jin smiled inwardly.

'Looks like the fog worked after all. Good.'

"Feeling tired? Want me to give you a massage? I'm pretty good at it," Jin offered casually.

Aika's eyes widened slightly. "A-Are you sure? You must be tired too, after playing all those games."

"Don't worry about me. Did you forget? I always get the highest scores in PE. This is nothing."

"In that case… I'll take you up on that offer."

Without hesitation, Aika plopped down on the bench and leaned back, resting her head against the backrest while unintentionally puffing out her chest. Her breasts jiggled slightly from the motion, causing Jin's eyes to flicker for a brief moment before he stepped behind her.

"Alright, allow me," he said, placing his hands on her shoulders.

Jin started massaging her shoulders without using Golden Hand at first, applying just the right amount of pressure.

"Mmm… Ahn~ That feels good, Jin…" Aika murmured in delight, tilting her head slightly.

"I'm glad. I'll get a bit more serious now, alright?"

"Sure… Ahh, this is amazing…"

With a subtle grin, Jin activated Golden Hand. The moment his skill took effect, Aika let out a surprised moan.

"Ahn~!"

Realizing how loud she had been, Aika quickly clamped her hands over her mouth, her face turning red. But Jin didn't stop—he continued his massage, sending waves of pleasure through her body. Despite trying to stifle her moans, muffled sounds of pleasure still escaped her lips.

The empty park echoed with her moans as her thighs rubbed together involuntarily. Within seconds, her breathing became ragged, and her eyes grew unfocused from the overwhelming sensation. Even without direct stimulation, Jin's skill was potent enough to leave her in a highly aroused state.

Finally, Aika's strength began to waver, and her hands fell from her mouth as her moans grew louder. Jin hadn't expected Golden Hand to be this effective.

'This skill is seriously overpowered…'

Sensing the perfect moment, Jin activated his next skill.

"Activate Milking Room."

[Milking Room activated.]

[You have 30 minutes before the room automatically disappears.]

[Happy Milking, User.]

The world around them instantly changed—the park vanished, replaced by a dimly lit room with walls made of smooth stone. Various pieces of equipment hung from the walls—ropes, vibrators, bottles of white liquid, and even a cow-milking machine.

The bench transformed into a simple bed, and Aika—still lost in pleasure—barely registered the shift in her surroundings. Yet, she managed to glance around with hazy eyes and ask, "W-What happened? D-Do you know something, Jin? Ahhn~!"

Before she could gather her thoughts, Jin intensified his massage, eliciting another moan.

"I do," he replied calmly. With a snap of his fingers, the bench fully transformed into a plush bed, and Aika's clothes vanished in an instant, leaving her completely exposed. Her D-cup breasts heaved with every breath, her hands now tied above her head with silk ropes that appeared from thin air.

Aika's body trembled with anticipation—whether from arousal or excitement, Jin couldn't tell. But judging by the wetness between her thighs, she was clearly ready.

'This room really is convenient…' Jin thought, briefly glancing at the equipment hanging from the walls. With just a thought, he could alter the room's appearance and functionality—truly a system built for its purpose.

Looking down at Aika, he smiled and said, "Welcome to the Milking Room, Aika. I'm going to help you reach a world of pleasure… and get what I need in return."

Still, despite his ulterior motives, Jin wasn't heartless. He wouldn't force himself on anyone unwilling—no matter how dire his situation was.

"May I?" he asked, meeting her gaze.

Though her face was flushed red with both embarrassment and desire, Aika nodded softly.

"Yes…"

And with that, the deal was sealed.