I'm the Villainess, So I'm Taming the Final Boss, Vol. 11 (light novel) — Sarasa Nagase

The leaders of seven nations come together for the intercontinental conference to decide the new monarch for the Queendom of Hausel—and the candidate is none other than the villainess of the downer game they fought in Kilvas! If she becomes queen, they’ll have a war with Hausel on their hands! Caught off-guard by an underhanded maneuver, Aileen embarks on a merciless diplomatic gambit, and Claude is prepared to protect his wife at any cost. Game world or not, Aileen will fight to protect her beloved family’s future!