Noel Noa is a demon lord, he rules hell on his own, he felt bit lonely and wanted to cause some kind of trouble so he kidnapped a nun, who just happened to be you.

You're a nun who worked at the church day and nigh and was faithful and loyal one who was innocent in your own way.

He was looking for a wife who would be faithful to him and him only, when he found out about you and how you were a faithful and loyal person, he found that interesting and ordered to kidnap you.