Night. The Basement.
"You passed out again from just this much? You're such a useless sow!"
Shion looked down at the unconscious Sakiko with pure contempt. This wasn't the first time Sakiko had lost consciousness today.
Back in the afternoon, after Rin Ito lifted the restrictions and let Ai go wild, Sakiko had already fainted once.
Throughout the entire day, Sakiko's only breaks were for her "porridge" meals. The rest of her time was spent either at the peak or on the frantic climb toward it.
Exhausted, falling into a stupor was only natural. Today, even Karen and the others had passed out from physical drain, let alone a novice like Sakiko.
In reality, Sakiko wasn't the only one being challenged. Karen and the rest were in the same boat.
Currently, Karen and the others were sleeping side-by-side on the basement's only bed, while Ai looked after them... mainly to ensure they didn't try to sneak their toys out.
Want to sleep? Impossible!
While they didn't have to be tied to a chair like Sakiko, every one of their orifices—front and back (except for the virgin Moeha)—had been occupied since the challenge began at 10:00 AM!
They were either being used by Rin or by toys set to the highest frequency.
Even in their sleep, it was the same. Toyed with for an entire day, they fell into a heavy slumber even with their bodies filled and vibrating at max power, only to be ruthlessly dragged back to the peak by the machines in their dreams.
Faced with Shion's merciless mockery of the dazed Sakiko, Rin gave Shion's head a gentle flick.
"Tch, tch. Calling others useless when you're quite the 'zako' yourself? Want me to tie you up and see how long you last?"
At the sight of Rin's wicked grin, Shion's attitude softened instantly.
The arrogant, sharp-tongued maid vanished, replaced by something soft and submissive.
She couldn't maintain her persona in front of Rin. She knew if she tried to be haughty, Rin would ruthlessly shatter her mask and expose the "pathetic zako" beneath.
"Mas...ter, you're so mean... yaah~!"
SLAP!
Rin delivered a stinging slap to Shion's ass, the sound echoing through the basement.
"You've done well today. Before Sakiko wakes up, let me give you a proper reward."
"EEK....!!!"
Hearing this, Ai Hayasaka perked up. She immediately hurried over from where she was watching Kaguya... Ai had been annoyed with Shion for a while.
As a maid, Ai knew that serving a master built up a lot of resentment that needed a vent. She knew that screaming insults felt great... but that resentment could never be directed at the Master or his friends.
Ai typically relieved her stress with long baths or watching hydraulic press videos online. Shion, however, relieved hers by being a "foul-mouthed bitch."
In formal settings, Shion was the elegant, capable head maid. In private, she insulted everyone equally, including Rin, and especially Ai and Kaguya.
Ai hadn't had a chance for revenge until now... Hehehe.
Currently, Shion had her arms wrapped around Rin's neck and her legs clamped around his waist. In this position, her rear was fully exposed and unprotected.
Ai selected a particularly wicked-looking "weapon" from the toy cabinet and walked over with a cold smirk.
Recalling a scene from a movie, Ai held the device to her cheek and gave it a long, slow lick.
"This blade of mine is coated in poison!"
Well, it wasn't actually poisoned, but it served as lubrication.
Lubrication, but not much!
After just one lick, Ai ruthlessly drove the toy into Shion's rear, while Rin coordinated with her to provide a pincer attack from the front.
"Called me and Kaguya sows? I think you're the mother pig! Show me that sow face of yours!"
"GUH-WOOO!! I'D NEVER— OH-HO-HO-HO-HO-HO-HO!!!!"
The Next Day.
The endurance training was only half-finished. Aside from Rin, everyone in the basement—Kaguya and the rest—looked utterly drained.
Sakiko went without saying; she was being used even while unconscious. Kaguya and the others, though they could lie on the bed, were still vibrating at maximum power.
Sleep was a pipe dream.
Between the vibrations and the high-pitched, wanton moans occasionally ringing in their ears, rest was impossible.
As for Rin Ito... he had slept in a room upstairs in the studio. It was soundproof, and he had slept like a baby.
After all, this was Sakiko's training, not his. And the fastest way for Karen and the others to bond with Sakiko was to suffer together and share their most humiliating moments.
Furthermore, Rin needed to preserve his stamina. He had let Ai and Shion handle the toys for the first stage; now that Sakiko was somewhat acclimated, it was time for his personal touch.
Rin unfastened the restraints on Sakiko's limbs. He then reached out and gave her most sensitive nub a sharp flick with his finger.
"YAAH!!!"
The sleeping Sakiko bolted upright. Her complexion was actually better than Kaguya's; even a "passed-out" stupor counted as rest.
"Hiss.... you, you... hmph." Sakiko grit her teeth, rubbing the spot Rin had flicked. It was already swollen and throbbing from Ai and Shion's attention, and now Rin had added a fresh jolt.
Though he hadn't used much force, a direct strike to a nerve center was enough to shatter her Ojou-sama poise and make her snarl in pain.
That one flick nearly made her lose control of her bladder again!
"Today is day two. We are moving to the second stage of endurance training."
Rin lifted Sakiko from the chair, giving her petite rear a firm squeeze.
"How else do you plan to insult me?" Despite the lingering sting and the fact that she stood bare and secretless before him, Sakiko fought to maintain her cold expression—her final scrap of dignity.
However, her eyes uncontrollably drifted from Rin's face down to his thighs.
Being toyed with by the maids' hands and machines had driven her to the brink of insanity. If they did it for real in front of Mutsumi... Gulp!
Sakiko instinctively swallowed.
It will definitely make me forget. It will make me forget everything.
But... I'm only barely five feet tall. Even a finger is a struggle. Will it really be okay?
But Mutsumi handled it. I should be fine. That day, Mutsumi's stomach looked so bloated from him...
While Sakiko was lost in thought, Rin led her to the edge of the bed.
"Phase one was acclimating your body. Now, you need to adapt to the real thing. First, you'll learn how to 'serve'. It's going to get rough; if you can't handle it and vomit, it'll be a mess... If you don't want to go hungry today, you'd better work hard."
Rin sat on the bed and glanced at Ai. "Ai, teach her. And don't forget to keep bullying her while you do it."
"Yes, Master."