Sugar Apple Fairy Tale, Vol. 4 (light novel)

Anne has finally attained the title of Silver Sugar Master, but not without paying a price. In exchange for information on the location of Anne's missing silver sugar, Challe sold his freedom to Bridget Paige, the daughter of the maestro of the Paige Workshop. Determined to get him back, Anne travels to the Paige Workshop and learns they'll return Challe if she agrees to work for them. She is assigned the difficult task of saving the debt-ridden business from the verge of ruin and accepts the challenge as she is set on rescuing Challe!