It started but a day ago.
Evacuation procedures began several weeks prior, but with the massive population of Beast Emperor Star, even Damien's improved teleportation array system could only do so much.
Everything was going according to plan.
Regular citizens were being moved to safety as fast as possible, and those who decided to stay and fight were being trained as efficiently as possible for the wars that would come in the future.
But nobody expected the Nox to come so soon.
They'd been focusing on Soul World with such ferocity that it was hard to imagine they still had forces to spare on their small resistance.
In fact, it wasn't wrong to think this way at all.
For several months, the level of invasion was extremely manageable, to the point where their guards were naturally lowered.
But that was probably what the Nox were aiming for from the start.
They never planned to leave a single world alone.