Actually, Yoshio didn't need anything; he just needed Szayelaporro's favorability.
But he still had to request something.
This was to put Szayelaporro at ease.
People like him wouldn't believe in gifts; he only believed in giving and receiving, in transactions.
Communicating with these heartless Hollows was indeed exhausting; their way of thinking was completely different from Shinigami and humans, belonging to a very biased and extreme type of creature.
Yoshio originally thought he could easily get Starrk's favorability above eighty, because Starrk was someone who desperately wanted friends.
But after actual contact, he realized that although the favorability did increase relatively quickly, it was far from the speed he imagined.
Moreover, just like with Kyōraku Shunsui, the higher the favorability, the slower it increased.
Yoshio guessed this might be because Starrk had lost many 'companions' in the past; those friends had all been killed by his overwhelmingly strong spiritual pressure.
So, in his heart, he longed for friends while fearing the loss of the next one.
This contradictory psychology was already one of the better ones among Hollows.
According to Aizen's later classification of the Espada based on 'aspects of death,' Starrk's aspect of death was solitude.
And Starrk was already trying to fight against solitude; perhaps it was this behavior that made Starrk the most special Hollow, one who autonomously achieved resurrection.
Like the other Espada, they perfectly embodied their respective aspects of death.
Baraggan pursued aging, Harribel revered sacrifice, Nnoitra indulged in despair, Grimmjow was obsessed with destruction...
Thus, Starrk, who sought friends and didn't enjoy solitude, autonomously achieved resurrection, while Ulquiorra, who sought to escape the void through spirit, achieved Segunda Etapa...
And if even Starrk was this awkward, let alone the other Hollows.
Winning the favor of Hollows was a long and arduous journey.
If Szayelaporro and Starrk's soul abilities weren't so attractive, Yoshio wouldn't bother playing house with these Hollows.
"How about it? Decided?"
Yoshio looked at Szayelaporro and said.
"..." Szayelaporro showed an exaggerated smile and said: "You're quite interesting."
"That Roka Paramia, although she's still somewhat useful to me, compared to a perfect life, she's nothing."
"But I'm curious—how exactly do you know about me? Did you investigate me before?"
"I've always thought I wasn't the type to show off; I usually just quietly do research in Baraggan's shadow."
Szayelaporro's strength was definitely not weaker than Baraggan's, perhaps even stronger, but he was willing to be Baraggan's scientist subordinate, which was unbelievable for a Hollow.
Because Hollows followed the law of the jungle: the strong devour the weak, and it's already good if strong ones don't fight each other, let alone a strong one becoming another's subordinate.
So, Szayelaporro was curious how Yoshio had discovered him.
Even when occasionally attacking Soul Society, he always sent experimental subjects or subordinates; his true self had never been discovered.
"Brilliantly..."
Yoshio paused, then placed his finger on his lips and said softly: "That's a secret."
A trace of killing intent emanated from Szayelaporro, but it quickly vanished.
"Forget it, I don't really care about that anyway."
He turned and said: "You want Roka Paramia, right? Then come with me."
"It's not that I want Roka Paramia; it's that you want a perfect life, so you have to give up Roka Paramia. Don't reverse the order." Yoshio followed Szayelaporro out.
He knew this person had a pathological obsession with the concept of a perfect life.
And now that he said Roka Paramia was still useful, it proved he hadn't completed the 'Gabriel' yet, making things much simpler.
Roka Paramia was one of Szayelaporro's experimental subjects, originally an Adjuchas Menos Grande. Szayelaporro, having witnessed the battle between the Eleventh Division's seventh-generation Kenpachi Kuruyashiki and the eighth-generation Kenpachi Sōya Azashiro, became interested in Azashiro's abilities and began modifying Roka Paramia.
Roka Paramia possessed an ability called "Telaraña." This ability allowed her to release invisible "threads" that invaded an object's interior, analyzed its components and information, and then retracted them into her body.
Through analyzing the object, she could use Telaraña to reweave and create it, replicating the item.
Szayelaporro's initial idea was to have Roka Paramia create backups of himself, so that after Szayelaporro died, Roka Paramia could recreate him.
But this creation wasn't true resurrection, because what she created was just another individual with the original memories.
Therefore, "Szayelaporro" considered it imperfect, and once he completed Gabriel, "Roka Paramia" would naturally become useless.
However, for scientists like him, they often overlooked that byproducts could sometimes have greater uses.
Roka Paramia's ability was still very powerful, able to extract information from all things and then replicate them—it was practically a divine skill.
Yoshio couldn't say he completely ignored this ability; this was a perfect opportunity to exchange for Roka Paramia. This way, not only could he put Szayelaporro at ease, but Yoshio could also gain a capable subordinate.
So, he followed Szayelaporro all the way to his laboratory in Las Noches.
Yoshio was very confident; he had many trump cards, and even if Szayelaporro wanted to harm him, he was confident he could escape.
So, he boldly came to visit.
"You should feel honored." Szayelaporro said proudly, "My laboratory—even Baraggan can't enter without permission."
Clearly, "Szayelaporro" didn't respect "Baraggan," the former "King of Hueco Mundo," especially now that he was no longer the "King of Hueco Mundo."
"From a sensory perspective..."
Yoshio toured the laboratory and gave a brief evaluation.
"This is pretty crude."
"What did you say?" Szayelaporro was a bit annoyed. Being called weak was acceptable, but being criticized on his technique was not.
"Do you want me to help you revise it?" Yoshio said slowly, "And by the way, revise the erroneous thinking in your mind caused by the Hollow's corrupting factors."
"Shinigami!" Szayelaporro instantly turned around, looking at Yoshio behind him, a flash of madness in his eyes.
"Don't think that just because you're Aizen's envoy, you can speak to me so arrogantly!"