How did he not just wait for the barrier magic to disappear or went around it? Not like the one who casted it can keep it up forever or has that big of a radius. If the barrier magic is that strong, why didn't they use that to block the monsters' path and escape?
Thank you for the work! I kind of wanted it to continue, but I think they're just too strong already. They'll breeze through some of the floors for sure and then stop a progress. There's still the abnormal armor monster with a master.