Ane No Migawari De Totsuida Nokori Kasu Reijo Desuga, Shiawasesugiru Fuhai Seikatsu wo Okurimasu

Marguerite, the second daughter of the Viscount Nepharshal family, was raised as a servant, lacking magical power and called the 'leftover' of her talented older sister. Despite this situation, the cheerful Marguerite lived happily every day, relying on her favorite 'cooking' and memories of her past life as her emotional support. One day, she is forced to marry the fiancé of her older sister, the runaway sister's substitute, and is sent to the Marquis Ganongruff. The Marquis was a terrifying figure, rumored to use the world's most dreadful 'Corruption Magic' and feared by all. However, Marguerite does not despair over this situation; on the contrary, she seems genuinely excited about the prospect of experiencing the Marquis's magic...!?