Dannasama wa Taihen Isogashii Okata nano desu

Lisette is to be wed to the marquis, Leonardo Salvère. Although it is borne out of convenience, Lisette is keen on the marriage—yet... no one awaits her at the altar. What is more, her life at the estate is a lonely one with no husband in sight and only her needlework to keep her company.

"So, you do not wish to see your wife who you married out of convenience, not even deigning to show her some courtesy? Then so be it, I too shall conduct myself as I like!"

Having reached her limit, Lisette sets a certain trap in Leonardo's quarters as a declaration of war. Within the distinguished house of Salvère, there arises a grand marital quarrel!

(Source: Alphapolis, translated)