How big is the Austro-Song Empire?

The Ausong Empire covers an area of 450,000 square kilometers.

The Austro-Song Empire was put forward by the Eight-Foot Forum, a large-scale overhead literary forum, and was adopted by many derivative literary works.

According to the basic setting set in the discussion of the Eight-Foot Forum, Australia and Song Dynasty is an independent mainland country, located in the middle of the Pacific Ocean, with a vast territory. It was established by overseas immigrants at the end of the Song Dynasty and independently developed modern civilization.