Enter Lee Sun-jae (Yoo Ah-in), a 20-year-old prodigy who works as a bike courier. He has the hands of a concert pianist but none of the privilege. When Hye-won discovers him playing Chopin’s Étude Op. 25 No. 11, known as "Winter Wind," her cold, calculated world shatters. What unfolds is not just a physical affair but a spiritual awakening.

A masterclass in subtle acting, Kim portrays a woman who has suppressed her own humanity for success, only to have it reawakened by a younger man's sincerity.

Given the specific title you provided, I am basing this report on the acclaimed JTBC drama (2014), as no standalone Korean drama titled simply Love Affair aired in 2014; however, a close match exists under Secret Love Affair , which was a major critical hit that year.

(played by Hwang Jung-eum) is a naive woman who is fiercely loyal to her ambitious boyfriend, Ahn Do-hoon (played by Bae Soo-bin). One rainy night, Yoo-jung drives Do-hoon’s car and accidentally hits a pedestrian. Do-hoon, who is a prosecutor on the rise, convinces Yoo-jung to take the blame and go to prison in his stead, promising to wait for her.

– This is a well-known JTBC drama starring Kim Hee-ae and Yoo Ah-in. It’s about a classical piano prodigy and a much older married woman who works at an arts foundation, leading to a passionate and complex affair.