Kaiser watched her fleeing figure with a shake of his head and a soft chuckle.
It was the first time he'd seen Grayfia like this—so utterly flustered.
"But how exactly am I going to get stronger?"
He rubbed his chin, lost in thought.
There were certainly plenty of opportunities in a world like this.
The problem was the sheer chaos of it all—every storyline mashed together.
Who knew how much the plots had shifted?
"Wait a minute... don't I have some kind of golden finger?"
The moment the words left his mouth, a clear ding rang in his ears.
Then, a translucent virtual panel materialized before his eyes.
[Kaiser Lucifuge]
[Race: Progenitor Devil]
[Level: LV30]
[Authority: Progenitor Devil Transformation]
[Skills: Devil Contract, Devil Summoning]
"This system interface is pretty bare-bones."
Kaiser muttered a complaint, but his eyes were glued to the text.
In the next instant, streams of information flooded naturally into his mind.
The Devil Contract was a method for recruiting servants, similar in effect to the Underworld's Evil Pieces.
The key differences were profound: it could reincarnate beings of any race into devils, and it granted them their own leveling system.
Depending on a servant's innate potential, they might even awaken unique skills.
He could grow stronger by leveling up through combat—or by drawing feedback from the power of his servants.
Devil Summoning allowed him to distribute contract parchments across countless worlds.
Anyone who performed a summoning ritual would open a path for him to cross dimensions.
As for Progenitor Devil Transformation...
It was a temporary release of the latent power sealed within his bloodline.
Even without fully activating it, his bodily fluids held immense value to other devils—treasures of pure enhancement.
In some worlds, he'd be seen as the ultimate cultivation vessel.
Kaiser's expression hardened.
He'd have to be careful from now on.
The last thing he wanted was to end up captive to some obsessive pursuer.
"Still, gaining strength just by recruiting servants? That's a hell of a perk."
A glint sparked in his eyes as he stroked his chin.
"The only catch is that my servants need a certain level of potential."
"Otherwise, they couldn't withstand the transformation from the contract."
At that thought, inspiration struck.
He knew the perfect candidate.
...
"Fia-sis, become my servant."
Grayfia stared silently at Kaiser, who had sought her out with this bold declaration.
That was far too direct—she wasn't sure how to respond.
With a helpless smile, she replied, "Kaiser, I wouldn't mind becoming your servant at all."
"But the Evil Pieces I've requested for you haven't been approved yet. You'll have to wait."
"I don't need Evil Pieces. All you have to do is agree, Fia-sis."
Grayfia blinked, her expression turning bewildered.
Kaiser glanced at the glowing Devil Contract skill on his panel.
One of its passive effects allowed him to sense those with the qualifications to become his servants.
As he'd suspected, Grayfia was a perfect match.
"Are you sure you're not joking?"
Regaining her composure, she asked instinctively, "Did you develop some new reincarnation technique?"
Kaiser shook his head. "It's more like I awakened a unique ability."
Grayfia nodded in understanding.
Devils in the Underworld came in all varieties—many possessed rare forms of demonic power or extraordinary gifts.
But something akin to the Evil Pieces? That was unheard of.
"Very well. I accept."
Curiosity colored her voice as she asked, "How do we proceed?"
"First, you'll need to remove your outer layers."
Seeing her cheeks begin to flush, Kaiser quickly added, "I have to inscribe the contract with my blood. The clothing would get in the way."
Truth be told, the process felt a bit absurd to him too.
But on second thought... teasing his future servants might not be such a bad idea.
"Alright."
Grayfia drew a deep breath. Her fingers trembled slightly, but she didn't hesitate as she slowly unfastened her buttons.
Kaiser watched her clutch the folded garment to her chest, ears burning crimson, and felt his heartbeat quicken.
If this weren't part of the ritual, he might not have held back.
"Fia-sis, here I go."
He stepped closer, raising his index finger. A faint golden droplet of blood welled up at the tip.
He paused in surprise.
It seemed the awakening had already transformed him.
Even his blood had changed.
Without pausing further, he pressed the bloodied finger against her smooth skin.
The instant it made contact, a soft glow emanated from the point.
Brilliant golden light swiftly traced a heart-shaped pattern across her flesh.
Countless arcane symbols flickered briefly within the radiance before vanishing.
Grayfia felt something shatter deep inside her—as if chains she hadn't known existed had broken.
The world shifted in her perception.
The shackles on her body were gone.
At that same moment!
Kaiser sensed a surge as Grayfia fully became his servant. His physical prowess and demonic power exploded upward.
His strength, only recently elevated to High-Class Devil, continued to climb without restraint.
While her reincarnation ritual completed, Kaiser pulled up his panel.
[Kaiser Lucifuge]
[Race: Progenitor Devil]
[Level: LV51]
[Authority: Progenitor Devil Transformation]
[Servants: Grayfia]
[Skills: Devil Contract, Devil Summoning, Infinite Demonic Power]
...
Kaiser's pupils contracted sharply.
That much of a boost?
It had to be tied to Grayfia's own formidable strength.
Next, he examined the new skill: Infinite Demonic Power.
[Infinite Demonic Power: Demonic energy without limit; any expenditure recovers instantaneously.]
His eyes lit up at the description.
This skill was nothing short of overpowered.
From now on, prolonged battles would never drain him.
"Kaiser... have you become a Demon King?"
On the other side, Grayfia—fresh from the ritual—stared in stunned disbelief.
What just happened?
Kaiser had only been a High-Class Devil moments ago, yet his demonic power had surged to Demon King level.
Wasn't that a little too outrageous?
"It's part of my ability too."
He explained briefly before adding, "And you've gained a new skill as well."
"What do you mean?"
"Hold on a second."
Kaiser grabbed paper and pen, jotting down notes.
Strictly speaking, Infinite Demonic Power originated from Grayfia.
As his servant, her abilities reflected onto him.
A moment later, he handed her the sheet.
She took it instinctively and glanced down—then instinctively opened her own panel.
[Grayfia Lucifuge]
[Race: Devil]
[Master: Kaiser Lucifuge]
[Level: LV63]
[Skills: Infinite Demonic Power]
[Infinite Demonic Power: Demonic energy without limit; any expenditure recovers instantaneously.]
...
Grayfia's eyes widened. "There's... actually a skill like this?"
She looked at Kaiser in astonishment, joy shining in her gaze.
This was beyond incredible.
Her raw demonic reserves hadn't changed much.
But with Infinite Demonic Power, her growth potential had skyrocketed.
Most crucially...
She assessed her body's condition.
It felt as though every bottleneck had vanished entirely.
And it was all thanks to Kaiser.
Her expression grew solemn.
"Kaiser, is there a limit to how many servants you can take?"
He shook his head. "None."
Compared to the rigid constraints of Evil Pieces, this was a massive advantage.
As long as they had the potential, he could recruit without end.
"In that case, you must keep this absolutely secret."
Grayfia warned him gravely. "At least until you're powerful enough—never reveal it."
Unlimited devil reincarnation.
The ability to grant brand-new powers on top of it.
If word got out, the old fossils of the Underworld would lose their minds.
If you want to read more than 20 chapters early feel free to visit patreon.com /Archus