All People Change Classes: The Little Girl Rat King Wants to Farm

Myriad realms invaded, countless Boundary Gates descended from the sky onto Blue Star, instantly causing countless disasters!
At the end of its rope, the consciousness of Blue Star awakened!
Its name: Survival Game Rules!
The era named ‘Survival Game’ has begun!
******
Mos was reincarnated, horrified to discover she had turned into a little mouse!
“Having been reborn into this world, how could I possibly die having achieved nothing!”
From the sewer came the little mouse’s stubborn cry!
So what if I’m a little mouse!
Mos declared: My fate is in my own hands, not decided by the heavens!
She is the cunning rogue who weaves through the War of the Gods, stealing Godhood!
She is the Demon King who spreads plague and death across the myriad realms, the mere mention of whom makes countless creatures turn pale!
And…