Fixer should possibly help with Bloodfang problem, if he hasn't joined you officially yet - so the fixer should at least remove him, hopefully. Fixer is usually more for problems with the camera, like a extremely zoomed in camera from scenes/caves still sticking around and being a pain in outside maps where you can't see much. If I was you, I'll have to give up on that cave with minotaurs, best to wait for a fix.
If you're looking for a tag like that in Broken Reality, I don't know if it will happen to MC or the party at all, but I think there are implications of mind control in the game but it's likely plot flavor, rather than something tied to H-scenes. I would be proven wrong later though!
In previous versions of the game, Hana was a very strong magus/rogue hybrid with healing/AOE magic/status effects - but since several updates and her skillset being locked behind Temple OR statue events scattered across the game, you could possibly build her as a rogue and focus on agility/luck/evasion. Later on, you'll discover her Foibles and decide for yourself on how you would build her. For example, one foible disables her weapon slot but gives her two turns to use in battles. Things like that. Personally, I'll focus on daggers for lucky critical hits but it's your call. I'll admit to not having explored her combat potential much.