Haiki Miko no Watashi ga Seijo!? Demo Kishi-sama ni Dekiai sareteiru node, Kyoukai ni wa Modoremasen!

Iris, a candidate for sainthood, is scheduled to be "discarded." In fact, she possesses special powers. Along the way, she meets Giuornos, a handsome young knight, and her fate changes dramatically in this Cinderella story of dramatic reversals!

(Source: Comic Walker, translated)