After impersonating a noble, I became a god

Rówēi transmigrates into the body of a lowly commoner who has pretended to be a noble lady to enter school, and is on the verge of being exposed, despised by the whole academy, and hanged in the marketplace. But she is not afraid: if it is only acting like a noble, a twenty-first-century girl can do it better than a real noble.

When a noble lady tries to test her with expensive spices, Rówēi recognizes them instantly as ordinary Western seasonings. When people mock her for not understanding geometry, she smiles and answers with trigonometric functions she learned in middle school.

When they say she is too poor for silk, she turns a whole bolt of silk into pajamas and even makes a box of silk handkerchiefs, using one and tossing one away. When they say she has no fief and is not a true noble, she earns money by day, opens up wasteland by night, studies while farming, claims millions of square kilometers of fertile new land for herself, and founds a country with herself as its ruler.

In the end, after her identity is exposed and the church demands a trial, she reveals that she never had a noble title because she is the king of Wù Country. Finally, she abolishes the nobility, establishes a new nation, and becomes a god in the hearts of countless commoners.