The Korean drama “Four Hands, Two Sonatas” follows in the footsteps of “Love Is a Dangerous Business,” depicting the story that unfolds as two geniuses face each other in front of a single piano.
It is a work about a boy who craved genius, and the other genius who shook that craving — depicting the special friendship, wounds, and growth of the two.
In the drama, Kang Bi-o (Song Kang) is a perfectionist who balances natural talent with 10 hours of daily practice.
As a child, his heart is shaken by the appearance of Choi Jeong-yo, a genius boy who once defeated him — the only person ever to do so.
Choi Jeong-yo (Lee Jun-young) is a genius musician who commands the stage with rebellious, improvisational playing.
Hong Jae-in (Jang Gyu-ri) is a viola major with perfect pitch, who connects Bi-o and Jeong-yo.
Director Park Hyun-seok, who directed the 2020 tvN drama “It’s Okay to Not Be Okay” to critical acclaim, helms this production.
Korean Drama: Four Hands, Two Sonatas
- English title: Four Hands, Two Sonatas
- Genre: Youth, coming-of-age, school, romance, music
- Episodes: 12 total
- Premiere date: August 29, 2026
- Original work: Original (not adapted)
- Broadcast time: Saturdays, Sundays at 9:10 PM
- Director: Park Hyun-seok | Screenplay: Shin Yi-won | Adaptation: N/A
- Cast: Song Kang, Lee Jun-young, Jang Gyu-ri, Yoon Se-ah, Jung Jin-young, Seo Jae-hee, Song No-jin, Lee Myeong-ro, Kim Min, Kim Hye-hwa, Kim Joo-hun, Lee Sang-jun, Yoo Tae-ju
- Filming period: December 2025 – July 17, 2026
- Production companies: Studio Dragon, Studio N, Namoo Actors
- Streaming: Korea – TVING, Netflix | Japan – Netflix | Network – Netflix (global)
- Rating: 15+
Table of Contents
Four Hands, Two Sonatas Cast
- Kang Bi-o (Song Kang; child actor Park Hu) — Male, ages 17–27. A first-year piano major at Korea Arts High School. Elegant in appearance and a perfectionist by nature, he never settles for less than first place. Struggling with the complex of being born out of wedlock, he throws himself into music to win his grandfather’s recognition.
- Choi Jeong-yo (Lee Jun-young; child actor Han Ji-an) — Male, ages 17–27. Marked by a rebellious gaze and an improvisational playing style. A genius who was the only one to ever defeat Bi-o in a competition as a child; transfers to Korea Arts High School and forms a fateful friendship with Bi-o.
- Hong Jae-in (Jang Gyu-ri) — Female, ages 17–27. A viola major at Korea Arts High School with perfect pitch and exceptional aural skills. Bright and cheerful, she becomes the link between Bi-o and Jeong-yo.
- Kang Ji-hye (Yoon Se-ah) — Kang Bi-o’s mother.
- Kang Seung-woon (Jung Jin-young) — Kang Bi-o’s grandfather, a world-renowned conductor.
- Yoon Seong-ju (Seo Jae-hee) — Kang Ji-hye’s stepmother and chairperson of Korea Arts High School.
- Choi Gi-tek (Song No-jin) — Choi Jeong-yo’s father.
- Jo Hyeon-cheol (Lee Myeong-ro) — Choi Jeong-yo’s close older brother.
- Section Chief Kim (Kim Min) — A moneylender.
- Han Hyeong-jeong (Kim Hye-hwa) — Hong Jae-in’s mother, and head of an artist management agency.
- Do Hyeon-soo (Kim Joo-hun) — Mentor to both Jeong-yo and Bi-o, a pianist.
- Yoon Han-rim (Lee Sang-jun) — A piano major in the music department at Korea Arts High School, and Bi-o’s self-declared rival.
- Jang Seok-hwan (Yoo Tae-ju) — A cello major in the music department at Korea Arts High School, who bullies Bi-o together with Yoon Han-rim.
Korean Drama Four Hands, Two Sonatas Relationship Chart
Four Hands, Two Sonatas Official Clip | Netflix [ENG SUB]
Other Filming Locations
- Dongwonjang: 45-1 Toegye-ro 12-gil, Jung-gu, Seoul
- Huwoon Plus: 49 Dongho-ro 11-gil, Jung-gu, Seoul
- Nakwon Arcade: 428 Samil-daero, Jongno-gu, Seoul
- Line 3 Dongnimmun Station, and others
Other filming locations will be updated at a later date.
Collection of Filming Locations for the Drama “Four Hands”
Daegu Keimyung University Daemyung Campus (Korea Arts High School filming location)
Keimyung University Seongseo Campus Adams Chapel
Inwang Middle School: 69 Segeomjeong-ro 4-gil, Seodaemun-gu, Seoul
Bucheon Arts Center
Guri Art Hall: 453 Achasan-ro, Guri-si, Gyeonggi-do
Seoul Arts Center: 1748-51 Seocho-dong, Seocho-gu, Seoul
Saints Peter & Paul Basilica: Štulcova, 128 00 Praha 2-Vyšehrad, Czech Republic
The city loved by Mozart, who left the words “Prague alone understands me.”
Rudolfinum: Alšovo nábř. 79/12, 110 00 Staré město-Staré Město, Czech Republic
Charles Bridge: Karlův most, 110 00 Praha 1, Czech Republic
The title “Four Hands” refers both to the four hands of the two pianists, and carries an underlying implication of friendship and love — referencing the piano term for a four-handed performance.
