On the eve of her wedding, Nanako finds her fiancé cheating with another woman! An improper priest whispers sweet words of revenge to her broken heart. Is he a messenger of God or something else..? What illicit "service" does he want from her now that she stepped into his church, and are his teachings actually whispers of the devil? Will those who believe really be saved? This is the start of a unique "gospel" love comedy involving a mysterious hero (a.k.a shady pastor) and his secrets behind the scenes.