Here's the last thing I can tell you (don't wanna spoil the ACTUAL story for you. What I told you are only bios, which arent spoilers). Let's just say, an adept who supposedly died from asg1 as a boss (not final) came back again, but as the final boss this time. He stole something important to both Gunvolt and Copen, and Copen also took something from Gunvolt.