The Empress's Gigolo

Tags: Appearance Changes, Beasts, Beautiful Female Lead, Character Growth, Childcare, Clever Protagonist, Couple Growth, Court Official, Cultivation, Depictions of Cruelty, Economics, Empires, Engagement, Famous Protagonist, Firearms, Handsome Male Lead, Kingdom Building, Kingdoms, Love Interest Falls in Love First, Lucky Protagonist, Male Protagonist, Management, Marriage, Military, Modern Day, Modern Knowledge, Money Grubber, Personality Changes, Poor to Rich, Power Couple, Quirky Characters, Returning from Another World, Ruthless Protagonist, Shameless Protagonist, Slow Growth at Start, Slow Romance, Smart Couple, Strong Love Interests, Technological Gap, Transported to Another World, Tsundere, Unlucky Protagonist, Weak to Strong