God, I’ve Heard My Fiancé and the Saint Committed Ad**tery?

In 'God, I’ve Heard My Fiancé and the Saint Committed Ad**tery?', a web novel in Japanese, the Saint and the protagonist's fiancé are at the center of a scandal involving demons and infidelity, threatening a nation's safety. Filled with action, fantasy, and romance, this story delves into themes of betrayal and supernatural forces, featuring a strong female lead and a captivating plot that explores the consequences of forbidden love and noble responsibilities.