Orion says:

Kuhoin Murasaki is perhaps the most intriguing character in the series. She’s clearly quite precocious, having come from an upbringing that’s taught her how to behave in adult society, as well as providing her with a humorously extensive vocabulary. Yet at the same time, the strictness of her environment has prevented her from experiencing the world and really just being a kid. Exposed to the outside world for the first time, in many ways she is rediscovering the childhood she has never been able to experience. Thus her behavior is a fascinating dictotomy between surprisingly mature savviness and wide-eyed wonderment and exploration.

In a sense she feels almost like a “reverse” Koiwai Yotsuba, if you will. Both are largely ignorant of the many facets of society and the world around them, both tend to fall into humorous misunderstandings, and both react with. However, where Yotsuba is eternally genki and clueless, Murasaki has shown that she has the capacity to learn and grow from her experiences. Thus her exposure to the outside is resulting in rapid character development as she constantly assimilates new ideas and adjusts her worldview accordingly.

Believe it or not, I figured that much about Murasaki already, but Orion has put these thoughts into data first (with a good reason: I'm not watching the show, but he is).

Also, at the link, Gruff and Orion being enormous weaboos, and I mean it in the nicest possible way.