Chapter 299: Satan-Class
After the intense climax, Katerea lay weakly on the ground, savoring the lingering sensations of their fierce coupling. However, Haruto had no intention of letting her off so easily.
He kept one hand pressed over the sexy dark-skinned beauty's mouth while the other wrapped around her waist. Then, with his thick, hard, and fiery dragon, he began thrusting again into her freshly climaxed, extremely sensitive valley.
"Mmph... mmph..."
Wave after wave of residual pleasure washed over her, yet the intense stimulation continued relentlessly. Tears nearly welled up in Katerea's eyes as the extreme pleasure began to feel almost torturous.
Her hot, alluring body instinctively tightened its narrow floral passage, which only enhanced Haruto's pleasure further.
After what felt like an eternity, the intense stimulation finally subsided slightly, replaced by a tingling itch rising from deep within.
But just then, Haruto seemed to read her mind. His previously frantic thrusts gradually slowed until he came to a complete stop.
The thirsty dark-skinned beauty had no choice but to actively squeeze her black-stockinged legs together, swaying her slender waist and full hips back and forth to rhythmically take in Haruto's dragon.
The hard, thick dragon rubbed against the soft, smooth walls of her floral passage, its fiery heat scorching her sensitive flesh.
While tending to the man's dragon, Katerea gradually felt another climax building. Her already climaxed core began secreting warm, transparent honey once more.
Under the ministrations of the sexy southern beauty, Haruto finally felt the urge to release.
He reached out to hold Katerea's voluptuous buttocks and began actively thrusting into her slippery valley.
Katerea's valley was fiery hot and tight. After several hundred thrusts, Haruto felt his dragon approaching the edge of ejaculation from the intense constriction.
He thrust deeply one final time, and with a tingling sensation running up his spine, released streams of hot, milky essence into the dark-skinned beauty's well-prepared womb.
After one perfect dual cultivation session and receiving a belly full of life essence, Katerea finally felt the flames that had been burning her body and soul for nearly a month extinguish.
But she felt it wasn't enough - how long could just one session sustain her?
Since she was already here, she might as well eat until full, until satisfied.
Getting truly satisfied might be difficult - even after a full week last time, when she was thoroughly stained with Haruto's color and molded to his shape, she hadn't felt truly weary of it.
But eating her fill, storing more essence to last longer would be good.
After all, frequent visits to the human realm would be hard to explain if her subordinates noticed.
Facing his personal fuckdoll's advances, Haruto didn't outright refuse, but neither did he indulge without limit.
After completing their second dual cultivation session and confirming he still hadn't broken through to Satan-Class - adding more evidence to the possibility of "resistance" - he sent Katerea back to the Underworld.
He couldn't waste his first night in his new home entirely on this dark-skinned bitch.
Before leaving, Katerea resumed her cold, arrogant demon queen demeanor.
Had she not been covered in white stains, wearing nothing but a waist-length white shirt and sexy black stockings that left all her intimate areas exposed, Haruto might have even praised her acting skills.
Right now, Haruto just wanted to pin her down and give her another hard creampie.
But seeing the flicker of anticipation in her eyes, he decisively hit the brakes.
That was close. Who would have thought this seemingly innocent dark-skinned beauty would play such mind games? He nearly fell for her trap.
Under Katerea's slightly regretful gaze, Haruto formally established their master-and-bitch relationship with her. After exchanging contact information, their brief meeting concluded.
When Haruto returned to the penthouse, it wasn't even midnight yet.
Although Katerea's sudden visit had caught him off guard, dealing with such a bitch didn't require elaborate methods.
Thus, even after dual cultivating twice and handling some miscellaneous matters, less than two hours had passed.
Haruto informed Rias about his new bitch Katerea through the soul network but instructed her to keep it confidential for now.
Firstly, the dark-skinned beauty herself didn't want to be exposed, seemingly reveling in her public queen/private bitch duality.
Secondly, Haruto needed her as a mole. Though the Khaos Brigade had a loose structure, not just any random person could join.
He currently had no conflicts with the Khaos Brigade, but it never hurt to have contingency plans.
Haruto wasn't a master strategist, but neither was he a reckless brute—his intelligence could be considered above average overall.
As for the final point, he also enjoyed toying with his exclusive plaything who acted haughty and elegant in public yet became wanton and debased in private.
Rias never expected Haruto's initial plan to actually succeed. After her surprise, she immediately coordinated actions with him.
While Akeno and others trusted Haruto enough to entrust him with their lives, Rias held an equal if not higher position in their hearts.
Without Rias, many of them would have died years ago or ended up on paths worse than death.
With Rias covering for him, the magical fluctuations from the basement were easily explained away.
Someone as sharp as Akeno simply chose to pretend not to notice.
While the innocent ones, like the golden-haired little nun, couldn't detect the coordinated concealment between Haruto and Rias at all.
With the emergency resolved, the night was just beginning.
It was summer vacation anyway, with nothing scheduled for tomorrow—perfect for an all-nighter.
Haruto lay on the large bed and summoned Rias, Akeno, and Yuuma to continue assisting their cultivation, hoping to help them break through to SSS-Class soon.
After a night of intense "battle," the excitement from moving into the new home and the urges stirred up by Katerea were finally completely released.
Moreover, through Haruto's diligent "cultivation" over many days, Rias successfully broke through that very night, becoming the second SSS-Class powerhouse in the God Research Club after Haruto himself.
...
As the month-long summer vacation gradually passed, success bred more success. Akeno and Yuuma soon achieved their breakthroughs as well.
The full moon night of August arrived, during which Koneko, Mittelt, and Kalawarna successfully formed Soul Contracts with Haruto.
Gazing at the entangled figures on the large bed—one mature and two petite, three fair and alluring bodies—Haruto sighed contentedly.
Two-thirds of the nine Soul Contract slots had been filled, but the effects were truly remarkable.
Just last night, after completing the Soul Contract with the tall, slender Kalawarna, the feedback energy helped him shatter an invisible barrier, officially elevating him to Satan-Class.
If he hadn't broken through soon, Haruto would have started looking into how to approach Grayfia.
Or, taking advantage of the remaining summer vacation time, he could visit the Underworld to see our dear student council president and see if there was a chance to deepen his relationship with a certain Satan who enjoys cosplaying as a magical girl.
...
After breaking through to the Satan-Class, Haruto didn't feel any major changes.
It was just that his magical power had increased, his physical abilities had grown stronger, and whether he remained invincible within the same realm was yet to be tested.
However, after reaching the Satan-Class, he could freely use the Balance Breaker of the Red Dragon Emperor's Gauntlet. In a real fight, he could easily handle two opponents of the same level, unlike before when he could take on five or six.
With continued use of his dual cultivation ability, he could rapidly accumulate power, reach the Super Devil Class, and restore his absolute strength to take on multiple opponents in the same realm. It likely wouldn't take long.
Compared to Haruto's calm demeanor, Rias and the others felt his breakthrough to the Satan-Class much more profoundly.
For one, during dual cultivation, the exaggerated amplification effect and speed, along with the dense life energy, made each session equivalent to three or four previous ones.
This was already the case for Rias and the other two at the SSS-Class. For the weaker ones, like the white-haired loli and a few others, they could hardly digest Haruto's essence.
After each dual cultivation session, they needed several days of rest.
Unless they fully absorbed the abundant life energy in their bodies, they couldn't engage in dual cultivation again.
After all, every time the "dragon" entered, it left behind a sticky mess. Haruto found it somewhat off-putting, and the girls themselves felt uncomfortably full.
However, for the weaker girls, such as the Takamine Sisters, it had no effect.
Because for a long time now, they had been unable to digest and absorb Haruto's life energy.
They could only benefit from each dual cultivation session, but these benefits were limited by their innate potential.
As his strength continued to grow, certain ideas occasionally surfaced in Haruto's mind.
For instance, acquiring a powerful and useful familiar or forming his own Valkyrie guard...
Well, the second idea came to him when Bikou mentioned the Northern Aesir gods.