Building wormhole bridges and adding Wormhole Bridge Stations had greatly facilitated angel travel, but that did not mean angels could make a round trip on the same day they set out on a mission.
The length of an angel's journey was usually determined by the mission. Short ones took a few days, while longer ones could last years or even centuries.
Some might say that centuries sounded a little exaggerated.
But it really was not!
For example, the Bok Nebula Yan had previously visited. Terra Star had received Liang Bing's attention and been seeded with a small amount of Devil Factor.
Heavenly City discovered it early and promptly sent Yan to carry out justice, wiping out the low-level demons and preventing the situation from worsening.
Had Heavenly City discovered it too late, things would have ended differently. A civilization still in the Cold Weapon Era simply could not effectively curb the spread of demons. Against those monsters capable of short-distance flight, they had even less of a chance. The genetic virus would spread at an alarming rate, and native inhabitants whose genes were overwritten would become low-level demons and form a demon army. They would brutally slaughter civilians and seize cities, leaving devastation in their wake.
If angels were sent there at that point, their mission would be to lead the planet's natives in a counterattack against the demons. As the demons continuously evolved, the war would drag on for years, even decades...
Once justice finally defeated evil, the angels would spread the ideals of justice while the civilization was rebuilding from ruin. Only after that civilization had established its own Justice Order would the angels' mission be considered complete.
So once they had missions, the Little Angels might go a very long time without seeing one another. Now that