Two guys are interested in you: Your ex-boyfriend of six years and a new guy. Who do you pick? The new K-drama Soundtrack #2, a sequel to 2022's Soundtrack #1 starring Park Hyung-sik and Han So-hee, presents its main character Do Hyun-seo with the dilemma. Hyun-seo (played by Keum Sae-rok) is a pianist who used to date vocalist Ji Su-ho.