But in 3.1, this exploit was fixed. My carelessly leveled (I admit, I'm to blame) Kujin only managed to win on the 3rd attempt. I was playing as a hero.
It's important in the last mission for Kujin to leave her with only the artifacts necessary for the final battle. Everything else needs to be sold. Otherwise, this girl might equip herself with something inappropriate for the fight with the demon, choosing what she thinks looks better on her. I didn't do that either. She fought in the enlightened chainmail.