Help!

So am desperately looking for an Isekai shojo manga which I am pretty sure it's anthology one-shot stories where FL was accused of being a Villainess so her engagement got called off from the crown prince and ended up marrying to another country's cp or king. Soon afterwards ex-fiance's kingdom came to ask for her help/protection and she insisted she can help only if he answer all her questions truthfully for each right answer she will protect a piece of His land therefore not only did she got her name cleared but ex was able to find out the truth that all rumors about her was false.