Basking in the soothing warmth of the water as it cleansed his body of sweat and mingled fluids, Kagura's thoughts drifted to the "system." Its brief chime during their intimacy had vanished, leaving him to wonder if it was a mere hallucination.
No sooner had the thought crossed his mind than his consciousness seemed to detach, drawn into a void-like expanse. The system's genderless voice resounded once more in his head.
"Greetings, Master Kagura. Allow this system to serve you. Our interactions occur in a timeless void, with all external and internal time frozen. Upon conclusion, your consciousness will seamlessly return to your body."
Kagura nodded inwardly, reassured that the earlier voice was real.
"Understood. What functions do you offer?"
"The auxiliary system provides two primary functions. First, Daily Sign-In: You may summon this system once daily to sign in, instantly restoring your body to peak condition, replenishing all stamina, energy, and hunger.
Second, Bounty Issuance: When the system detects your desires, it will issue bounties. You may skip them to claim rewards directly—various items and abilities await. Up to three bounties are offered daily. Completing a bounty grants a triple stamina-energy recovery potion or a 5% sensitivity enhancement potion for women. Skipping or ignoring bounties incurs no penalty."
The system's tone carried a hint of eagerness, as if it yearned for Kagura to pursue its bounties.
"Sounds decent… Restoring stamina, energy, and hunger? I'm about to eat dinner—can the sign-in skip the hunger restoration?"
"Absolutely. This system strives to fulfill all your requests."
"…Fine, let's try a sign-in."
"Sign-in successful. Next sign-in available in 6 hours, 18 minutes, 29 seconds."
No sooner had the system spoken than the fatigue and faint lethargy from his tryst with Ai vanished. Kagura felt as refreshed as if he'd lounged through a leisurely holiday and woken naturally from a perfect sleep.
Thanks to the "energy restoration," his recently sated member surged back to life, standing as proudly as it did at dawn.
This… isn't the effect a bit *too* potent?
Kagura was seized by the urge to drag Ai back and ravish her six or seven more times.
"Does this sign-in drain my lifespan?"
He'd heard of drugs inducing unnatural vigor, and he had no desire to die young.
"No. All system functions are entirely harmless to your body."
"Good work. Now scram."
The system's chatter was starting to grate.
"Please wait. A bounty task is now issued. You may complete one or skip:
A: Release inside a woman's mouth.
B: Release on a woman's face.
C: Slap a woman."
"Skip it. I'm more curious about the unknown rewards than stamina boosts or sensitivity potions."
The option to bypass tasks piqued Kagura's interest—he refused to be led by the system's whims.
"You have skipped the bounty. You have gained the [Control Sperm Viability] ability. Rest assured, this poses no harm to your body."
"Sperm viability?" Kagura stifled a laugh. Was the system this shameless because of his recent intimacy with Ai? Did it tailor rewards to recent events?
"You may toggle it on or off. When off, your sperm will be incapable of impregnating until reactivated."
"Turning it off now won't affect what I've already released, right? Like with Ai—I finished inside her three times."
Kagura saw the appeal. Releasing inside a beauty was sublime, but contraception often carried side effects. This ability eliminated that worry, allowing endless indulgence without pregnancy risks.
"If you prefer Ai not conceive, this system can address it once."
"Hm… handle it. It'd be troublesome if Ai got pregnant too soon."
Kagura resolved to tell Ai she needn't take emergency contraceptives, though she might misinterpret his intent.
"Processing complete. Would you like to deactivate sperm viability?"
"Can I reactivate it anytime?"
"Yes."
"Then deactivate it."
"Deactivation successful. Would you like to end this interaction? To summon the system, simply think 'Call Auxiliary System.'"
"Got it. Scram, and don't bother me unless I call."
With that, Kagura's consciousness snapped back to his body.
Gazing at his still-rigid member, he flicked it with a knuckle, stretching contentedly with a grin. "Go wild, buddy. I'll flip the switch when I'm ready for heirs."
That said, Kagura was no lust-driven beast. Raised with impeccable education, he wasn't the sort to lose himself at the sight of a pretty face, driven solely by base urges. Even if he were to bed other women, it would be like with Ai—mutual desire, emotional and physical harmony.
Even if the system offered a "guilt-free assault license," his conscience would balk. Unless, perhaps, a woman genuinely craved such an act—but did such women exist? He doubted it.
After dining with his mother Sayuri, sister Eriri, Eriri's maid Kasugano Sora, and Ai, Kagura noticed Ai's fatigue and spared her further demands. He played the piano late into the night before retiring, leaving Ai to direct other maids in tidying his room.
Today, April 1st, was both April Fool's Day and the start of the school year at Sobu High. Kagura set his alarm for 7 a.m., planning a brief nap before using the system's sign-in to erase sleep deprivation.
Morning, 6:50 a.m.
Ai, fully primped and dressed in Sobu High's JK uniform, opened the partition between their bedrooms. With light, sprightly steps, she approached Kagura's grand bed, swathed in deep red down, and deftly unlocked his phone with her fingerprint.
Bound by complete trust, Kagura and Ai had open access to each other's devices.
Having signed in the previous night to restore stamina and energy, Kagura had only fallen asleep an hour ago, now lying defenseless in serene slumber.