1% of Anything(2003)

1% of Anything is a South Korean romantic comedy series about a kind middle school teacher and a temperamental heir whose unlikely romance defies the odds. When Kim Jung-Hwa helps an elderly stranger, she unknowingly catches the attention of a wealthy conglomerate owner who decides to leave his fortune to whoever marries her. His hot-headed grandson, Kang Dong-Won, is forced to pursue Jung-Hwa to claim the inheritance, but their constant bickering sparks genuine chemistry. As Dong-Won grows protective when a colleague develops feelings for Jung-Hwa, both begin to see past their differences. What seemed destined to fail becomes the perfect match—a rare 1% chance at real love.