Because you can't be in the sunlight, it's like your lifespan is halved.
Since your lifespan has already been halved, why not use half of it to create a "Homies"—or a Cloud Homies, then you Izo in its shadow and not worry about the sunlight...
BigMom's words make perfect sense; the logic is flawless!
But...
In essence, it's about sacrificing half of Vladimir's lifespan in exchange for a Homies is completely obedient to Big Mom—a win-win situation, with Big Mom winning twice.
Unlike Moria's silhouette, Big Mom's soul Deprivation can be extremely detailed, measured in "lifespans," and the Deprivation soul is "cleansed," losing its distinctive personal characteristics that are as prominent as a shadow.
It's essentially pure soul power, available for Big Mom's use...
Moreover, all Homies only obey Big Mom's orders, or rather, they are powerless to resist Big Mom's soul aura—which is why Lola was able to get away by relying on Big Mom's Vivre Card.
Katakuri to the side, had already brightened up, thinking to himself: As expected of his Mom, she is more "thoughtful" than I thought.
Vladimir came to surrender willingly, and they couldn't very well refuse him; otherwise, people would think the Big Mom Pirates were afraid of his beasts. Especially since Big Mom's goal was to create an ideal land of equality for all races, where anyone could settle in Whole Cake Island Land as long as they paid taxes on time and weren't allowed to leave. How could they possibly refuse a powerful individual who came willingly to surrender?
But if we were to take him in, we'd always feel that this guy had ulterior motives and strange abilities. Not only would we be hesitant to entrust him with important tasks, but we'd also have to assign someone to keep a close eye on him...
No matter how you look at it, you're losing out!
However, Big Mom, being a veteran pirate, readily resorted to such despicable methods.
Do you want my people watching you?
Absolutely not!
Not only do they dare to accept it, they dare to cut off half of your soul and become your overseer!
This move essentially involves using half of Vladimir's fortune to buy a position within the Big Mom Pirates, and then using that money to hire an HR person specifically to keep an eye on him...
Even if "Vladimir" escapes, BigMom still gets a high-quality HR... no, Homies, for free, since it was created from half the lifespan of such a master.
Sig was taken aback – this guy was clearly a veteran pirate, far more despicable than a newbie like himself. He was the Vampire!
Moreover, while BigMom appears to be "asking for opinions," the sense of pressure is actually building up...
When facing Big Mom, anyone who feels fear or wavers in their will will have their soul stolen without their consent.
It can be considered a power developed by Big Mom after combining Conqueror's Haki with the Soul-Soul Devil Fruit ability.
However, Sieg Sig still, not a single ounce of his soul power was taken by Big Mom, meaning his resolve was unwavering!
This is inevitable. Sig's Conqueror's Haki, while not top-tier, has the ability through the Visionary Path, making it easy for him to control his emotions.
BigMom narrowed her eyes upon seeing this. "How is it?"
It's alright that he didn't waver; in fact, it made BigMom even more optimistic about the Vampire's soul quality. Now, it's just a matter of whether he agrees or not!
Of course, even if you don't agree...
Now that we're already in Whole Cake Island, is this place so easy to navigate?
If you agree...
Sig paused for two seconds, then after a long period of contemplation, exclaimed, "Thank you so much, Mom! I've only just joined, and you've already gone to so much trouble for Mom. The Big Mom Pirates are truly a loving family!"
The sincerity that emanated from within even surprised a veteran pirate like Big Mom.
"Fine! That's straightforward! You look quite young, so... thirty years, give it to me!" BigMom's features seemed to contort into a ferocious expression, his eyes bloodshot.
Sig also felt his soul being ripped away. Although he could resist because his will was not shaken, Sig still took the initiative to let go of the resistance!
Before reaching High Sequence, the "Paths of the Divine" generally does little to help with lifespan; a lifespan of thirty years does indeed account for "half" of that.
BigMom reached out and plucked the large clump of spirit directly from Sig's body, causing Sig's energy to drop drastically and nearly make him faint!
The reason Sig didn't resist, aside from his current situation, was mainly due to... or rather, his hesitation, on the question of "whether he could make half of his soul power have a 'hidden' quality."
While generally speaking, a soul that has been stripped away and is completely controlled by Big Mom will become pure soul power, unrelated to its original owner, it is far too easy for Sig, as the owner of the "Visionary Path," to break this rule.
In particular, Big Mom will later place the Homies, made from half of her soul, next to Sig.
Even if the connection faded considerably at the time, it can be rebuilt later, or even re-fused—from the original work, the soul that was Deprivation by Big Mom can be returned, just like the Sharingan, it's "plug and play".
For Sig, the real worry is whether Big Mom will discover the abnormality of his soul!
As the possessor of five Paths of the Divine, one's abilities related to the soul are not limited to just one or two; it would be strange if one's soul were not abnormal.
If discovered, Big Mom will not only be even less at ease with "Vladimir," but may even be tempted to pursue other greedy interests!
Therefore, during those two seconds of deep thought, which is considered a "not short" time for the Visionary Path, Sig first manipulated his own soul.
On one hand, it's about "hiding," and on the other hand, it's about actively separating—having previous experience with Moria, and even having Moria help him create silhouettes, Sig already had experience with soul splitting.
As for the so-called "hiding," it means using the power of "self-suggestion" to make the split soul truly believe that it is ordinary, and even temporarily sealing away its special characteristics.
In this way, Sig is at least 80% certain he won't be discovered...
Even if they fail, it's only thirty years of lifespan—for pirates, lifespan is already excessive!
Given the choice between living sixty years in obscurity and living three years in a spectacular fashion, most pirates would choose the latter, or even be willing to trade it for a year.
However, if Big Mom becomes suspicious afterward, things will go more passive, and that's when it comes to life and death...
If Sig manages to get away with it, he'll benefit greatly; it's like Big Mom has handed him a sample of a "small Soul-Soul Fruit"!
Sig then cautiously observed... Judging from Big Mom's emotions, his preparations were successful, and Big Mom didn't suspect anything!
The only "anomalies" were merely surprising—even the hidden strength of the soul greatly astonished BigMom.
After "pulling out" the soul of thirty years, BigMom's wariness of Sig dropped to a very low level, and her trust and goodwill towards him soared.
BigMom's personality is like that of a capricious, ruthless blacklist Big Sister —temperamental, domineering, and not easily fooled. However, if Little Brother who willingly comes to her side cuts off a finger to show his loyalty, he will quickly gain her favor...
Moreover, Sig's actions were far more ruthless than cutting off a finger!