The Returning Lord of Light

A temple lord hides his identity as an ordinary gardener to repay a debt, secretly building his wife's failing company into an imperial powerhouse and planting lavender for her dream of nobility. When the Eternal Night Church returns, he slays its archbishop and plans to reveal his identity—only to be humiliated by her family and publicly denied by his power-hungry wife, who forces him to dissolve their marriage. After bearing the backlash alone, he retakes the temple, and her world collapses as she learns everything came from him. Left with endless regret, she loses him forever, while he finds new love with a female knight who always respected him.