Talk:Zipangu/@comment-28655817-20160506033649/@comment-5426290-20160506092041

Only parts of it are Bright Green Demon Realms, the green meaning that not many highly aggressive species are abound there.

Zipangu is also an Island as Japan, so it's still quite big despite how small the writer describes it as in reference to the main continent. And they have only lived together with monsters for as long as the Current DemonLord has been in reign due to the whole monsters-killing-humans thing.