How to select the right target for corruption?
For the devils residing in the nine-layered Purgatory (Bator Nine Prisons), this is a study that emphasizes experience and is worth delving into.
The soul, as the most common currency in Hell, the fuel for machines, the foundation material for arrays and buildings, and even the ladder for a devil's promotion, has a very high value in the Nine Prisons, almost akin to a strategic resource.
Yet, just as the currency in the Material Realm is divided into "gold, silver, copper," there are also significant distinctions in value and rarity between different souls.
A low-level adventurer who spends his days mingling in taverns with goblins, and a legendary existence who has reached the pinnacle and stands at the top of the professional pyramid;
A shabby beggar seen everywhere on the streets, who could die in some dark corner at any time, and a supreme Emperor ruling a vast Kingdom with billions of people.
