Basically the second queen, Ed's mother hatches a ploy with the pope of the religion (church boy's dad btw) to get Iris exiled from normal life, to force her to become a beggar (those exiled don't have the same rights that even a commoner has), because she sold the terrain of the old church (the orphanage) to build the new orphanage, supposedly without the consent of the "master" church, and if i'm remembering right, in this Isekai's religion, selling the land of god is a sin or something along those lines. The catch here is that the old church wasn't a church anymore and so not the land of god, but what she was accused of is that Iris made the deal despite knowing it was the land of god, as if it was still a working church.