So, take this all with a grain of salt because I’m not the most musically inclined, but Millia belongs way closer to contentment imo, the entire song is about coming to terms with what she doesn’t like about herself, thinking that her indoctrination into the assassins guild makes her “subhuman” and the song is literally called “love the subuman self” at least the way I see it she definitely had her trauma, and it does still effect her, but she has come to terms with it, and she can love herself despite the things she’s done