Japan

In a twist of fate, Japan was able to unify much earlier on and begin developing rapidly, resembling their modern counterpart but being completely self-sufficient thanks to also being able to conquer Korea in another event of altered history, but they weren't able to attack China in this timeline either, due to different circumstances. Still, this wasn't a downside since Korea was turned into a massive strategic and farming territory, producing the necessary crops so Japan could utilise the vast quantity of minerals in their nation to grow technologically while staying isolated. But this didn't mean they didn't get visitors, they did, especially from the radically changing Europe, allowing the mixed bloods to create a new breed of people, hyper-humans, people born with large tits and asses, as well as larger and stronger bodies to accomodate. Hyper-girls were even more prevalent in modern Japan, often coupling with larger men of various body types who instinctually grew in response to hyper-girls. Refer to doujins:

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