I still don’t believe the demon lord actually died to that. I don’t believe the author is that stupid to hype her up, us knowing the position, and then kill her off so easily with one pathetic explosion the mc easily survived. You don’t give a character more backstory and development than an antagonist and then kill them off shortly after they were introduced. If she actually did die then I can’t say I want to keep reading this because of the direction it’ll probably take (into ridiculousness trying to be serious I mean).