The Saint Whose Engagement Was Broken Runs a Cafeteria, Where the Beloved Demon King and Ninja Visit Today (Alternatingly) – The Odd Saint Is [Secretly] the Demon King’s Favorite

Saint Hiira Seamacy is the strongest saint. She belonged to the demon king subjugation party of her fiancé, Kasdar, but was expelled and abandoned because he thought her ability to produce flour was lame.
Her family, the Viscount family, was also taken over by her uncle, so she became an orphan. However, she finally obtained freedom for the first time in her life.
Hiira used her skill as a flour saint to open the [Saint Restaurant] near the demon king’s castle, which was avoided as a polluted land.
The restaurant was bustling with unlimited flour from the saint and delicious food.
She enjoyed her life to the fullest, and there was a man who watched over her.
There was Demon King-sama, who was kind but somewhat lonely, and the mysterious masked ninja, Synovidos Igahan.
For some reason, the two of them appeared alternately in front of Hiira.
“You never notice anything, Hiira-chan.”
Even the demon king’s servant, the black dragon, was amazed.