The starry sky space rift, though called a "rift," actually occupies over 90% of the Mortal Domain.
The regions covered by the origin of tens of thousands of dimensional planes altogether merely make up less than 10%.
However, every dimensional plane will give birth to Life Planets, which, under the guidance of the origin, gradually evolve into "intelligent life." Where there is life, the dimensional planes brim with wonder.
Yet the vast expanse of the "starry sky space rift" nurtures countless treasures, attracting plane-life forms to venture into its depths.
After all, while dimensional planes do give rise to abundant ordinary life, the treasures birthed therein are far fewer.
Over the long eras, through accumulated intelligence, some perilous treasure lands in the starry sky space rift gradually became well-known.
The Flame River is one such place of great renown.
...
The outskirts of the Flame River.
