Disaster in Beatbreak

I just watched episode 9 of Beatbreak and I noticed something weird during the add for Shangri-La Egg it said that it was built after “That Disaster” so I’m wondering what the disaster was because I feel like I missed something and if I didn’t miss anything then the disaster was probably what gave people the ability to use e-pulse, it’s Digimon related, and given the fact Shangri-La Egg is basically just a giant Sapotama I’m guessing that the final boss of Beatbreak is going to hatch from it either being fully evolved or rapidly evolving when it hatches