Inside the Asmodeus family castle bedroom, the décor remained as luxurious as ever, filled with exquisite furniture.
Birds chirped in the distance. Vitan lay on the soft, round bed wearing a loose robe, enjoying a personal massage from Radix.
A massive LCD TV in front of him was playing an entertainment program from the Underworld.
The host of the variety show was none other than one of the Four Great Satans—Serafall Leviathan.
From a normal human perspective, the place where devils lived should be one of judgment and punishment:
A sky soaked in blood, endless crimson mist swirling about, putrid winds nauseating to the nose, and rivers formed by dark red blood.
Scattered remains of limbs, organs, hands, feet, and heads—human, angelic, and divine corpses strewn about in miserable states—were proudly displayed in castles by cunning, deceitful, and evil devils.
However, the reality was that the place where devils now lived closely resembled the human world.
Not only did the architecture look very human, but all kinds of human-invented entertainment facilities had also been introduced into the Underworld for devil enjoyment.
Those imagined scenes of horror likely only existed in ancient times, before the fallen angels had even arrived in the Underworld.
Grayfia and Ajuka had left in the early evening.
After all, these two were Devil Lords of the Underworld, unlike Sirzechs, whose main job was to improve his strength.
Their daily duties were extremely demanding, and being able to spare even an afternoon to visit Vitan was already a rare opportunity.
"Numerology… Did Ajuka manage to grasp the principles?"
Smooth hands glided over Vitan's muscular back, and the skilled technique made him close his eyes in comfort.
"Unfortunately, Lord Ajuka still seemed completely clueless."
Radix's hands didn't stop moving as she gently repeated the same motions.
"No wonder he looked like a resentful, unfulfilled housewife when he left earlier."
Maybe the difference in worlds had caused an incompatibility in magical systems!
As the possessor of Radix's grimoire, Vitan could easily learn the magic from the Trinity Seven world documented by her.
But others couldn't—whether they were devils or humans.
As for other races, he hadn't tried testing them yet.
This was also why Ajuka had been so eager to obtain a handwritten copy of Radix's grimoire.
As someone with a deep obsession with spells—so much so that he transformed that obsession into his special ability after becoming a transcendent—Ajuka simply couldn't resist the immense allure of an ocean of unknown magic formulas.
"Then let him wait a bit longer! Next time we return to your world, I'll casually grab him a grimoire."
Vitan let out a satisfied sigh, speaking without even lifting his head.
But then, the gentle hands massaging his back suddenly stopped.
Vitan, momentarily confused, opened his eyes and looked toward Radix.
Radix's eyes were already slightly red. From his angle, he could even see a layer of mist clouding her pale yellow pupils.
"Thank you, Master, for not forgetting my wish."
Her original master, the Devil King Deus Trinity, had indeed chosen to die willingly—but that didn't mean she had forgiven those who betrayed them.
Executing each of those traitors one by one was something she had always wanted to do.
However, now that she had recognized a new master and handed over the most precious legacy of her former master—the Devil King's True Core—to Vitan, returning to her original world was no longer a necessity.
After all, in that world, the two most important legacies were the True Core and herself.
The Devil King's True Core was the only artifact in the world of the "Trinity Seven" capable of unifying all the Libraries and achieving the status of Lord of the Multiverse.
However, this was an extraordinarily difficult feat. Even her former master had only managed to achieve a Trinitarian state at most.
And she—Radix Astil—was the one who had recorded all the precious magical rituals of the "Trinity Seven" world.
In short, her new master really had no reason to return to her world. The only reason to go back would be to help her take revenge.
That was why Radix was so deeply moved.
"It's nothing—just something I did while I was at it."
"But more importantly, we should first recover the data you lost when crossing into this world."
"Vengeance will have to wait."
Feeling the small hands at his back resume their movement, Vitan closed his eyes again and spoke softly.
"Of course. Master, all you need to do is follow your own plans. Besides, to wipe out those rebels, you'll at least need to fully integrate the powers of two Libraries."
"I know."
His current strength still wasn't enough. Let alone two Libraries—he hadn't even fully sublimated the Sloth Library he was currently researching into a Devil King body yet!
With his current strength, helping Radix get revenge was simply impossible.
Those who had once been the Malebranche under the Devil King were all individuals who had taken their magic to the extremes in their respective domains—founders of ritual techniques, so to speak.
The only thing they had lacked was the Devil King's True Core.
"Well then, Master, what's the plan? If you wish to begin your journey soon, there's a world I've been to before that could greatly assist you in mastering the Sloth Library."
Vitan turned over, revealing his well-built muscles as he leaned against the bed's headboard.
Radix, seeing that the massage time had ended, returned to her grimoire form and hung herself around Vitan's neck.
"Hmm, let's wait a little longer. I plan to handle some business in the human world first. Once that's done, we'll move on to the other worlds."
Caressing the chain binding Radix, he thought about how he'd spent so many years holed up in the underworld. It was time to see the divine artifact that brought this anime to life.
Maybe it would be useful to him—or maybe it would be entirely useless.
But he'd have to get his hands on it first to find out.
"I understand. I will do everything in my power to support you."
Now, Radix had fully devoted herself to Vitan. Whatever decision he made, she would support it.
"Yeah, but the day after tomorrow, I have to attend that banquet my sister insisted I go to."
As he said this, he reached for the nightstand and picked up a beautifully crafted banquet invitation, studying it carefully.