Oh well, I tried yesterday and had a decent run - 13 hours in I was at mt Gagazet without rushing too much with initial equipment, no escape, each aeon max 5 summons rules and I wasn't really having any problems but at Flux I got kinda sleepy and didn't pay attention enough and his Total Annihilation+Lance of Atrophy+Full-life got me.

I was fun anyway but I am a bit sad I failed to get through the whole game. I will probably try once more in the future but not anytime soon.