Pretty sure I've finished every questline (nothing new in logbook and nothing from the seer), but I don't have an option to invite Nymph or Alissa to the dungeon, and neither Alissa nor Nymosa are available as opponents on the island. Is there something I have to do to unlock this, or could there be an issue with my game?
I’ve finished Alissa’s quests, hundred percent certain. (I’ve finished every quest to my knowledge, nothing left in the logbook or with the seer). It remains that she is not present on the island or available as an opponent, nor can I invite her to the dungeon.
If you mean whether I’ve finished Polkopola’s Trial, yes. I’ve also been on the date with Nymph. It seems that when I talk with Nymph (or Alissa) there simply isn’t the option to invite them.