Three years after an incident at the Lumitys Kingdom's academy, where, during a graduation party, the Marquis's daughter — the Crown Prince's fiancée — was condemned for attempted murder of the Saintess and exiled from the country.

The story begins when a hero from a neighboring country requests an audience with the Crown Prince, who has since married the Saintess.

※ I have revised this section based on frequent feedback in comments.