Struggling

Congratulations on reaching 8-24 in just nine days! Amleth is a very powerful attacker with an immortal skill. Try focusing your experience gains on a single character for training.

I think you can clear it with Merlin, Florence, Soltina, Nina, and Amleth. If you can't clear it, it might be because your main attacker, Florence, doesn't have enough firepower~

If you're stuck, try looking at clear party setups. Then, check your attacker's defense penetration and physical/magic defense penetration values. If yours are significantly lower than the clear party's, that's the cause.

It's easy to use early on if you get this 'invincibility' on anyone. Try concentrating on equipping your main attacker (Florence) with the best gear (upgrades, runes, etc.).

Thanks for the advice! Thanks to all of you, I was able to win without any problems.