What if you took the place of a missing count's daughter?
And your fiancé (the Crown Prince), who you thought hated you, suddenly becomes doting!?

The identity of the one and only craftswoman who creates special garments imbued with the blessing of fairies—nicknamed "Orihime" (Weaver Princess) is Marie, a commoner girl forced into debt and working at the tailor's shop of a brothel. One day, she is suddenly nearly sold to the son of a wealthy merchant by her debtor, the brothel's mistress. Just as she despairs, a count's family offers her a surprising deal. They want her to take the place of Maria, their missing daughter who looks exactly like Marie! In exchange, they will take on the debt Marie was unjustly burdened with.

Marie agrees to the deal and immediately begins attending the academy as Maria. There, she meets the handsome Crown Prince Carlo, who is Maria's fiancé... But he turns out to be the boy Marie met only once 10 years ago—her first love!?