Hannah, a destitute girl in Grayfog Town, is relentlessly exploited and bullied by her aunt. To survive, she hastily marries amnesiac seraph Gabriel. Forced to depart amid a heavenly rebellion, Gabriel leaves the mortal realm—seven days in heaven equal seven years on earth. Hannah loneley raises their holy-light-blessed twin children, enduring her aunt’s forced marriage schemes, wealthy tycoons’ persecution and vicious slander. When Gabriel returns as heaven’s supreme ruler, he finds his family hunted as heretics. He protects them in mortal form and finally renounces his immortal throne, proving mortal true love surpasses all heavenly glory.