I would contend nearly all of the content with the people from neutral territories is as bad/worse in terms of quality. They all come across as the generic antagonist tropes when we've actually encountered them, which given the past few pages of the thread delving into valid reasons why they'd hate giantess being discussed, its a bit disappointing we don't have any content exploring that. (Maybe Pyeka's path with taking back her Empire, (plausibly a neutral land now?) could be a way to delve into that).She wasn't as bad as many of the other guest characters, I maintain that she's one of the best for sure (don't agree she's better than the majority of the main cast, but to each their own) but her dialogue in the very beginning felt like something I'd read in an RP, and the attack on her lair by dragonslayers didn't add anything to the lore or depth to her character, it felt mostly like "look how strong I am".
It's hard to describe, but I'd say the difference between a character and an OC is the former is made to fit into a world and be a part of it- the latter *is* the world, because that's the author's focus. She had just a bit of a self-insert feel to her, to me at least. Nothing intolerable though, though speaking of...
The cat puns, eh, yeah, fair, I understand that. I can forgive it though because Harumunia has a bit more to her route than just sex and exhibition... Though that doesn't hurt either. Harumunia isn't my favorite character, but she ticks a lot of boxes for me in the fetish department which, in a fetish game goes pretty far.
But getting back to Seinaru in particular, I liked the very concept of her trying to help MC get somewhat stronger, at least in so far as a human is concerned. I think that's an angle to the entire game that is horribly missed out on, that even if the overall lore is MC is helpless vs fullsize (especially guardians), at least he could get to a state where an accidental stepping on him, or boobs swung into him by a giantess turning around while on a table wont kill him.
Perhaps the eventual path Val-Klis's route with potions will lead with MC being able to consume a potion/tonic to help his ability to survive, but in general that path being dropped really was disappointing for me personally, especially when I seemed to be the only subscriber back then who wanted to see more. (When I realized I spent more on this game in two years than I did on DLC for EU4 in 10.... ).