I wonder what we'll learn about Haruka's magic. It appears she has lots of mana and can simply mold it according to her imagination which is a very raw way of using her mana.
It would actually be pretty intresting if Haruka was actually the Moon goddess, But what if she is the moon goddess of the past?
The moon goddess is apparently capricious though and that seems like a large departure from her current personality.
Now that we know who the humans and beastfolk worship, what about the elves?
The humans and beastfolk appear to worship the same gods though though the beliefs surrounding them appear to be different (humans see Zest as a destroyer, while beastfolk see the moon goddess as the one governing death, so subtly different); they just have different names. See chapter 17, page 18, we're told that the Oracle looks like an elf while the destroyer Zest looks like a dark elf.
It's a bit strange that both beastfolk and humans have gods that look like another race. Considering how long lived elves are, their rarity, and, from the sample of one that we've got with Haruka, their immense power, it's not too surprising some may have ended up worshipped as gods.
That or the sun (oracle) and moon god (Zest) were the gods of the elves, and their knowledge and culture spread amongst other races and overtook any other belief system.
I wonder if we'll ever meet another elf, but we would surely learn more about them then.
The implication seems to be that the MC took on the role of, or possessed the Moon Goddess. It would explain the limitless mana, magic potential, and simultaneous body reinforcement that no one else in the world understands or is capable of replicating. For all the regular and even exceptional folks out there, casting magic and body reinforcement were stated to be contradictory.
I don't think the body reinforcement is that mysterious, though it must certainly seem strange to others that Haruka can do it without understanding how. My understanding is that she simply has so much mana that she doesn't need to focus for it to reinforce her body. Others have limited pools of mana and need to focus their mana to temporarily boost their ability.
I don't recall it being stated that casting magic is incompatible with body reinforcement... It's been stated that multicasting spell is incredibly difficult though and that most mages only cast one spell at a time, so maybe body enhancement while using magic is difficult. In any case, I would say that the reason mages don't use body enhancement is twofold: they have limited mana so they can't waste it, and they don't train in close combat (like swordsmanship) but in long range attacks, so it's a waste to enhance their body. In chapter 14, page 18, the young twin mages explains exactly how body enhancement works and why it's so difficult - it's already simultaneous casting of two different type of magic. Casting additional magic on top of that is even more difficult.
imagine if the moon goddess is now a middle-aged man experiencing the wonders of earth. Maybe she just swapped them around to go on a nice (goddess sized) trip
:O
Yeah, that might be it.