Centaur's Worries 1-36
My opinion of this manga was initially a bit lukewarm but got much more positive after a certain part.
Reading the first few chapters, I honestly didn't care much at all about Himeno and her classmates aside from the chapters where they explore the small things in daily life that'd be different in a world where centaurs, mermen, etc. are commonplace, although I will give this manga the praise that the antics of the kindergarten aged kids are
painfully adorable, especially with this art style.
Then suddenly, Quetzalcoatal appears and my interest skyrockets
What makes her so interesting is that even in this universe where satyrs, demons, angels, centaurs, etc. live together, Quetzalcoatal's race, the "antarctican serpentines" are not even considered human. A lot of people seem to be prejudiced towards them and Himeno is downright afraid of them initially. Sure, for a decent reason, since the sight of a snake opening its jaw properly right in front of you is nothing if not frightning the first few times.
Because Quetzalcoatal is such a well-mannered girl, she manages to befriend a bunch of people really quickly, but even so, she sometimes makes small mistakes due to cultural differences and gets intimidated looks from people who don't really know her. She adapts pretty quickly and on occasion is actually more comfortable with Japanese culture than Antarctican, but she still remains this subtly unknown element. Even in this setting.