Is there anyone who has beaten the Redhead Succubus at the end and can share their secret? I have been unable to beat them, even at max level 99 and using the battle god medicine... so I'm suspecting there's some additional secret to it... whether it is grinding for food so Sophie can increase my stats even more, or using a certain equipment combo... there has to be something. If anyone has managed to beat them, please advise.
(note for if you not aware: they are not beatable when you encounter them in the tower, but their health is reduced to 70k when you summon them using their circle on the final floor. This makes me think that she's beatable there, but I've tried many attempts and it still seems impossible to finish her off)
(extra: I beat Blonde Succubus and Aki easy enough, but Redhead Succubus uses a move where she locks your skills and forces you to attack for several turns on end, which usually ends with me dead. I've got Redhead to half health, but at some point she WILL kill me with it. The trick is probably connected to preventing this from happening.)