After transmigrating as the fallen "Goddess of the Hearthfire" in the twilight of the gods, Estelle discovers that from the start, all she has is a drafty, dilapidated temple and a saintess who is about to freeze to death. To survive, she has no choice but to use the "Civilization System" from her previous life and start building from scratch, beginning with kneading mud.
Estelle: "I just wanted you to start a fire to keep warm." The Saintess: "I understand. I'll go burn down the Demon Lord's castle next door and offer you the eternal holy flame!"
Estelle: "I only gave her a bottle of cola..." The Saintess: "Praise be to our Lord! This is black holy water imbued with the power of the abyss!"
Years later, as Estelle stares at the floating cities rising up all around her, she is utterly bewildered. "I swear, I'm really just a boiler operator. Do you believe me?"