I never see the boss myself. But your method is interesting.Quote:
you got attacked yes, but no items drop, never ending battle (you must flee to end battle).
There's a method that you can attack her normally.
Here I just take screenshot a while ago.
I can attack the boss using my character and the boss still drops items. The battle is finished in 1 or 2 turns.
And yes, it's still working. I just fight the boss minutes ago.