My current understanding is that basically Luhak and the other heroed/dukes have kept repeating their destruction timeline with multiple other “kings”, the dukes kill the kings that aren’t like the ideal “king” that they see in their dreams (bc I think that king is the one that will save them?). So current season is them levelling enough in the tower that they essentially opened a “new gamemode” where they recreate the past (Luhak’s world’s destruction route) and fight the giant entity piece by piece (and they’ll find the answers/ways how in those recreations I guess?)

Can someone explain the storyline of the S3 finale and the new season? I don't understand, where are they and what's happening.