@CinnamonRoll
Okay, @Kinarymo, party time!! Top down on Narion…
As always, your character is ANNOYINGLY well-developed, to the point where I have to nitpick a lot to get notes. So, you know, usual stuff–if it doesn't make sense at ALL, just disregard!
First, I feel like you need to go deeper in the idea of losing positivity. It seems like a lot of Narion's personality is built around positivity: he takes the moral high ground, struggles to find the root of problems, gives of himself to help others. When he drains himself of positivity, how does that impact him? In particular, how does that change his dynamic with Rin–do his commands get darker? Is he less inclined to find a true solution, becoming somewhat jaded? Losing positivity for Narion would't just lead to sadness–it would lead to a LOT more than that.
Next up is a smaller note that doesn't necessarily have to be adopted, but I feel should be said nonetheless. Narion coming off as cold strikes me as wrong. I understand that he's introverted and doesn't like to talk to new people, which is totally fine, but that doesn't necessary give him a cold demeanor. He's a genuinely kind person. Even if he's a little shy, why doesn't he smile at people politely? Maybe offer to pour their drink or something? I just feel like at the very least, his vibes would be understood as warm and kind, perhaps a little awkward/standoffish, but not cold.
Narion's age is a little confusing (like, he's 23, but does he act like a human 23 year old or like a human 9 year old? who can say) so I'm just going to drop the religion/politics rants on the off chance that he's the equivalent of Human 23. You'll know that I yell about this a lot. (I'm not sure if I've told you? sorry if this is redundant!) Religion can be used as a vehicle to describe how traditional and structure-oriented characters are (if they ascribe to an organized religion). And it can define deeper traits–are the conniving, following religion for appearances? Or are they spiritual, seeking out the true faith that fits for them? Even for non-affiliated characters, this is helpful. Agnostic characters are more hopeful, atheistic characters more nihilistic. And as for politics, it's always helpful to rate characters on a scale of liberal-to-conservative, whatever those terms mean in your world. This works for characters who aren't politically active as well! Political stance is helpful, as it can be used to demonstrate how open characters are to change!
History is solid!!! I literally read through it four times struggling to find something to pick at, and… nothing. Alas, you stumped me! There's nothing WRONG here, but I would say there's a touch missing. Most notably are Narion's relationships with Rin and his father. When did he encounter Rin, and how did this relationship cause him to grow? His father is a bit more tricky. How did his encounter with his true parents change his relationship with his foster family? I have no doubt that Narion would still love them for how good they were to him, but how do THEY change upon realizing that their adopted son is Morphidae royalty? And how does his dependence on his birth father alter the relationship he has with his foster father in particular?
And that, my dear, is all I can offer you!! Your characters and your art continue to amaze me, and I REALLY can't wait for this series to be realized in literally any media format. And if it never is, I'm just really glad I got to meet these lovely characters!!! It really is a gift. As always, come back any time you'd like, and I hope that my notes are helpful to you!! :DDD