Song Kang is making his comeback to the small screen with the upcoming drama Four Hands, Two Sonatas. This marks his first acting project after completing his mandatory military service. The new tvN weekend drama has just released its first teaser, giving fans a look at what to expect from the pianist-themed series.
The teaser, which dropped on July 1, 2026, shows the special connection between two piano prodigies. Song Kang plays Kang Bi Oh, a perfectionist piano student who always ranks first in both academics and music. Lee Jun Young takes on the role of Choi Jung Yo, a gifted pianist who turned away from his talent due to a difficult past.
Four Hands, Two Sonatas is scheduled to premiere on August 29, 2026 at 9:10 p.m. KST. The drama will air on tvN’s Saturday-Sunday time slot and will consist of 12 episodes. Netflix will also stream the series globally on the same day.
Teaser Shows Two Pianists Sharing One Piano
The newly released “keyboard teaser” highlights the chemistry between the two main characters. It opens with a camcorder shot of Kang Bi Oh (Song Kang) sitting at the piano, with Choi Jung Yo (Lee Jun Young) behind the camera. The date shown in the footage is November 2016, indicating the story takes place during their school years.
The teaser captures simple but meaningful moments from their daily lives at an arts high school. The two characters are seen sitting side by side at a single piano, playing together in perfect sync. They also walk home together through dark school hallways, always staying close to each other.
One playful moment shows Choi Jung Yo grabbing Kang Bi Oh’s hand and waving it at the camera while saying “Hello”. These small gestures highlight the pure friendship between the two young musicians.
The teaser takes a dramatic turn near the end. The music changes to “Danse Macabre,” shifting the atmosphere completely. While Choi Jung Yo becomes deeply immersed in the music, Kang Bi Oh gives him a meaningful gaze, creating tension between them. The teaser ends with the words, “Prelude: the moment our fingers touch”.
Duo Poster Released Alongside Teaser
Along with the teaser, tvN released a duo poster featuring both actors. The poster captures Kang Bi Oh and Choi Jung Yo seated side by side at a single piano, performing a four-hand piano piece against the backdrop of a dimly lit concert hall. Both characters have their eyes closed, fully immersed in the music.
The styling of the two characters contrasts sharply between black and white, highlighting their different personalities. The poster’s phrase “One Piano, Two Geniuses” hints at their relationship as both partners and rivals.
A separate poster shows both hands resting on piano keys with the words, “In front of the keyboard, our breathtakingly perfect chemistry”. The image and tagline have added to the excitement, giving viewers a taste of the deep connection the two characters share through music.
What ‘Four Hands, Two Sonatas’ Is About
Four Hands, Two Sonatas is a coming-of-age drama set at Korea Arts High School, a school filled with exceptionally talented music students. The story follows the friendship, love, competition, and growth of these young people as they chase their dreams.
The title refers to a piano technique where two people play a single piano together, which serves as a central metaphor for the relationship between the two main characters.
Song Kang plays Kang Bi Oh, a perfectionist piano student who always ranks first in both academics and music. He is seen as a future star expected to win the world’s top piano competitions.
Lee Jun Young plays Choi Jung Yo, a piano prodigy who has turned away from his talent due to difficult personal circumstances. His character appears at the arts high school and meets Kang Bi Oh, who had caught his attention long ago.
The drama also features Jang Gyu Ri as Hong Jae In, a viola major with sensitive hearing who becomes close friends with Kang Bi Oh.
A Special Project for Both Actors
Four Hands, Two Sonatas holds special meaning for both leading actors. The drama marks Song Kang’s first project after completing his mandatory military service, which ended on October 1, 2025. Fans have been eagerly waiting for his return to the small screen.
For Lee Jun Young, this is his last drama before he enlists in the military in July 2026. The actor, who is also a member of the group U-KISS, has been receiving a lot of attention for his role.
Song Kang is often called the “Son of Netflix” by fans because of his many projects on the platform. He has starred in all three seasons of Sweet Home, My Demon, Forecasting Love and Weather, Nevertheless, Navillera, and Love Alarm.
Production Team and Supporting Cast
The drama is written by Shin Yi Won, known for Green Mothers Club, and directed by Park Hyun Seok, who worked on Stranger 2 and Knock Out. The series is produced by Studio Dragon, which has a long-running relationship with Netflix.
The supporting cast includes:
- Kim Joo Heon as Do Hyeon Su, the piano teacher
- Yoon Se Ah as Kang Ji Hye, Bi Oh’s mother
- Jung Jin Young as Kang Seung Un, Bi Oh’s grandfather and international conductor
- Seo Jae Hee as Yun Seon Ju
- Kim Hye Hwa as Han Yeon Jeong
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Global Release and Streaming Details
Four Hands, Two Sonatas will premiere on August 29, 2026 at 9:10 p.m. KST on tvN. The drama will have 12 episodes and air on Saturdays and Sundays.
Netflix has confirmed that the series will be available for global streaming outside South Korea on the same day. International fans will be able to watch the show with subtitles in multiple languages.
The drama follows Spooky in Love in tvN’s Saturday-Sunday lineup.
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