The area of the first day is much larger than imagined, more like a giant city floating between the clouds, and because of those slaves moving around, there is a hint of vitality here, unlike the dead silence and dreariness of the other heavens above in the universe.
There is a reason why angels keep slaves; unlike the elves who take pleasure in slaves, the angels' purpose is unexpectedly pure—it's simply because angels need labor to help them harvest and process a large amount of raw material for forging holy objects.
Forging the Life Gospel Holy Objects is strictly forbidden by the angels, thus the slaves here are not abused like those on the Tree Continent, but are used indifferently as tools by the angels.
Perhaps compared to elves, the angels' disregard is slightly better for slaves, but for Fisher, there is essentially no difference between the two.
