Rin found it difficult to describe the effect of King of the End.
In short, it was a combination of relative evil and absolute evil.
If it were the complete version of King of the End, Rin could absorb all the evil thoughts in the world, then transform them into magicules to strengthen himself.
This belonged to an effect, not growth, so there was a time limit.
When the effect of King of the End was canceled, the magicules that had been added to him would also flow away.
However, if he was in the skill's active state, Rin's combat power would become incredibly terrifying.
"It feels a bit like Milim's Lord of Wrath."
"The more evil thoughts absorbed, the stronger the power."
Rin could imagine what terrifying power he would unleash the moment he gathered all the evil thoughts in the world.
"What's with this incompleteness?"
"Side effect."
Violet explained, "You can absorb evil thoughts, but evil thoughts will also erode your sanity."
Therefore, in its incomplete state, this skill could easily cause Rin to lose control.
Upon hearing this, Rin immediately dismissed the idea of trying out King of the End.
Power that couldn't be controlled was better off not having.
Rin didn't want to become a madman.
"So how can this Ultimate Skill be completed?"
"Absorb pure soul energy."
What Violet said was actually the method to awaken a True Demon Lord.
Now that Rin had Justeaze, he could absorb souls without any qualms, no longer worrying about being corrupted himself.
"But where do the souls come from?"
Although absorbing souls wouldn't make the other party completely disappear, they would just turn into a spiritual core and live a not-so-good life in their next reincarnation.
However, wanton slaughter without any grievances or enmity was ultimately not good.
If he were truly such a person, Artoria would not have chosen to follow him.
"Indeed, do I still have to wait for the human kingdoms to attack, like Rimuru?"
If they were enemies, Rin would have no psychological burden in absorbing their souls.
Even a saint like Artoria, when facing a powerful enemy invasion, would not be soft-hearted and let the tiger return to the mountains.
"Or..."
Rin looked at the Void Ark, which was in its cooldown phase: "If I could find a world where monsters are everywhere, that would be great."
So, does a world filled with monsters exist?
The answer is yes, it does.
For example, Kabaneri of the Iron Fortress, Highschool of the Dead, Attack on Titan, or some more traditional labyrinth and dungeon-adventure-type otherworlds.
These places could allow Rin to quickly replenish souls and achieve the awakening of a Demon Lord Seed.
"Seven days..."
Rin stretched, "It's decided, I'll rest for seven days first."
"After seven days, I'll search for a world suitable for collecting souls, and then awaken in one fell swoop!"
As for now, what Rin needed to do was introduce Artoria and Justeaze to his subordinate monsters.
The two women had officially joined the Rin Group, and he needed to arrange corresponding work for them.
Justeaze would be responsible for establishing the Soul Guild.
Artoria, as she requested, would serve as Rin's guardian knight, protecting him closely.
"Oh, and Sakura and the others."
Rin walked out of the house.
He stood in the courtyard and then released Sakura, Ilya, and Irisviel.
"Where is this?"
The two little girls looked bewildered.
Irisviel wasn't doing much better.
Although she was an adult, a sheltered young lady like Irisviel had never seen the natural scenery of another world.
For a moment, Sakura, Ilya, and Irisviel were all captivated by the azure sky above and the dense forest around them.
"Welcome to my world, Sakura."
Rin reached out and stroked Sakura's head.
The girl didn't hesitate, directly throwing herself into Rin's arms, rubbing against him affectionately.
Ilya, standing beside them, watched this scene, a hint of envy in her eyes.
Having learned from her mother that her father had abandoned his wife and daughter, Ilya was still in pain and sorrow.
Fortunately, her mother was still with her.
Otherwise, Ilya didn't know how desperate she would be.
"You're Ilya, right?"
"Nice to meet you, my name is Itoshi Rin."
Rin squatted down, maintaining eye contact with Ilya: "You can continue to live in the castle as usual."
"Whenever you get bored, you can also come to the town to play."
Rin planned to establish the Einzbern Castle as the headquarters of the Soul Guild within the Void Ark.
From now on, the Void Ark would become Rin's palace, and only monsters granted names by him would be allowed to enter.
Conveniently, the Einzbern Castle was exquisite enough.
It perfectly met Rin's requirements for a palace.
At most, it would just need some renovations and an expansion of its area.
Violet would be in charge of these matters.
'Uh...'
'Am I being too lazy, relying on Violet for everything?'
As soon as this thought popped up, Rin dismissed it: 'What's this about relying or not relying? Violet and I are from the same source, her hard work is equivalent to me working, isn't it?'
[Discovered alien life]
[Starting detection...]
Additionally, the appearance of the three also received a boon from the Voice of the World.
However,
They were at most regarded by the Cardinal World as extraterrestrials summoned by Rin from other worlds.
Therefore, although the three acquired physical abilities that allowed them to move in the Cardinal World,
That was as far as it went.
There were no Unique Skills or other special abilities whatsoever.
[Irisviel (Unnamed)]
[Race: Flesh Golem]
[magicules: 3500 (C-Rank)]
[Ilya (Unnamed)]
[Race: Flesh Golem]
[magicules: 4000 (C-Rank) IV]
(To be continued.)