@Dimkanp Well, i can give you huge spoiler from WN but just wait it patiently. It will far far away even beyond this arc (Siegwurm's Raid Arc). My clue is just keep the words about those three "ships". Because of that i recommend you to read the tutorial sequence from this manga in chapter 1 or 2 if i don't mistaken. This manga already showed us one from 3 ships of Divinity Era's people.