Episode 45 giving us more insight on Gokkan and Morfonia makes me wanna cheer because it meant my theory essay (in-progress) is right about Gokkan as a country!
But I do love how it it implies that while Rita and Morf grew up together, they weren't exactly childhood friends but still sorta fitting into that trope in terms of knowing each other since childhood and trusting each other enough for Rita to make Morf their Retainer and for Morfonia to be Rita's most trusted partner and getting all the work done.
Also the implication that Rita, too, was born and raised in Gokkan whether their parents were just castle employees or criminals which allows them to frequently see their parents even with their busy schedule.
Not to mention it kinda fits into the typical Love Triangle Trope for HimeRitaMorf. Rita being the center of attention, Morfonia playing the role of the childhood friend (sorta) and Himeno playing the role of "gives a bad first impression but is shown to be a really good person". The difference is that it actually is a triangle solely because it's acknowledged that HimeMorf see each other as equals when it comes to having Rita's affection, and wanting to build off of that.