This plot often appears in fantasy novels or web novels because the devil is usually seen as an evil force, so both God and the devil are seen as attractive forces. In this case, the devil may use his attractiveness to win the girl's heart because the devil usually has more evil characteristics and purposes. But God may win a girl's heart in other ways, such as through her faith or kindness. The main purpose of this plot was to create suspense and attract the reader's interest through a seemingly impossible reversal.