Some stories need time to hit their peak — and Four Hands, Two Sonatas is banking on exactly that. tvN’s upcoming drama just released new stills showing Song Kang, Lee Jun Young, and Jang Gyuri a full ten years after their characters first crossed paths, and the transformation says everything about where this story is headed.
Four Hands, Two Sonatas- From Teenage Prodigies To Grown Musicians
The drama follows piano prodigies and a viola major who meet at an arts high school at 17, tracing their friendship, rivalry, and growth into adulthood as professional musicians. The new stills jump forward to when the trio turns 27, showing just how much a decade of dedication to music has shaped who they’ve become.

| Character | Actor | Then vs. Now |
|---|---|---|
| Kang Bi Oh | Song Kang | Still devoted to piano, now performing on stage in a tuxedo |
| Choi Jung Yo | Lee Jun Young | Lost his boyish look, now carries himself with composure |
| Hong Jae In | Jang Gyuri | More mature, but keeps her signature warm smile |
Why “Four Hands” Is More Than Just A Title
The drama’s title borrows from a real piano technique, where two performers play a single piano together in close, coordinated harmony — a format known as piano four hands. It’s a fitting metaphor for a story built on the tension and closeness between two piano geniuses who’ve spent a decade both alongside and against each other.
Kang Bi Oh’s continued devotion to the instrument, Choi Jung Yo’s newfound composure, and Hong Jae In’s blend of maturity and warmth all hint at complex adult versions of characters we first meet as teenagers — a promising setup for a coming-of-age story that doesn’t stop at adolescence.
Looking for more K-drama previews like this? Check out our latest entertainment coverage on TechnoSports for what’s coming to Korean television next.
When To Watch
Four Hands, Two Sonatas premieres on August 29 at 9:10 p.m. KST. In the meantime, fans can catch Lee Jun Young in Reborn Rookie or Song Kang in Beautiful Vampire, both available now.





