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[Korean Drama OSTs] Classic Popular Songs That Color the Story: Best Masterpieces

A considerable amount of time has passed since Korean dramas first made their way to Japan.

Starting with the spread sparked by Winter Sonata in 2003, and further propelled by the K-POP boom, people have grown more familiar with K-Culture!

Nowadays, it seems to be loved by many people regardless of gender or generation.

Korean dramas, whose popularity keeps rising, produce countless masterpieces every year!

In this article, we’ve researched a wide range of OSTs—from relatively new tracks to popular classics and timeless favorites—covering theme songs and insert songs from Korean dramas.

We hope you’ll look back on fond memories and discover some wonderful OSTs.

[Korean Drama OST] Classic Popular Songs That Color the Story: Best Masterpieces (11–20)

Romance Is a Bonus Book

All I do(그대만 떠올라)Roy Kim

[MV] Roy Kim(로이킴) _ All I do(그대만 떠올라) (Romance is a Bonus Book(로맨스는 별책부록) OST Part.3)
All I do(그대만 떠올라)Roy Kim

This is an OST from Romance Is a Bonus Book starring actor Lee Jong Suk.

It’s a love story between an author who became an editor-in-chief at a young age and a once-popular copywriter who’s doing her best to make a comeback.

It’s a gentle ballad that I think anyone can relate to—one that makes the person you love come to mind in every moment of being in love.

Roy Kim’s delicate vocals really resonate.

The drama is available on Netflix, so if you’re interested, be sure to check it out!

ButterflyJ.UNA

Japanese to English Translation: J.UNA 'Butterfly' (Nevertheless (알고있지만), OST Pt. 4) [Official]
ButterflyJ.UNA

This is the track featured in Part 4 of the romance drama Nevertheless, starring Han So-hee and Song Kang.

I’m sure many people became fans of the two through this drama.

It plays from the early episodes and is one of the most popular OSTs in the series.

The song is by J.UNA, a young singer-songwriter who grew up in Germany.

The melody has a Western pop feel, and the crisp tempo and vocals are very pleasing.

The lyrics, which seem to reflect the feelings of the protagonist Park Jae-eon, might pull you in as well, hinting at suspicion and the push-and-pull of romance.

Every Day, Every Moment)Paul Kim

폴킴 (Paul Kim) – 모든 날, 모든 순간 (Every Day, Every Moment) [가사 비디오]
Every Day, Every Moment)Paul Kim

A slow ballad released by Paul Kim in 2018.

Featured on the soundtrack of the drama “The Third Charm,” it became a big hit and greatly raised his profile.

Even if you don’t know Paul Kim, you might be familiar with this song.

It’s a love song about staying by someone’s side.

The title translates to “Every Day, Every Moment” in Japanese, perfectly conveying heartfelt emotions.

It’s a long-beloved song with a gentle softness that lets you breathe easy.

Highly recommended for those who enjoy calm music, and as a musical gift to someone special.

Lean On MePark Hyung Sik

박형식(Park Hyung Sik) – 내게 기대 (Lean On Me) (닥터슬럼프 OST) Doctor Slump OST Part 6
Lean On MePark Hyung Sik

Park Hyung-sik’s “Lean On Me” is a moving message song that emphasizes the importance of supporting one another.

Released in March 2024 as part of the Doctor Slump OST, it also enhances the drama’s sense of immersion.

Park Hyung-sik’s gentle, resonant voice strikes a chord as an anthem for those facing difficult times.

Set to a beautiful melody centered on piano and guitar, it feels as if the song gently urges us to join hands with the ones we love and keep moving forward.

When you find yourself at a crossroads in life, this track will surely give you courage.

What are weHA SUNG WOON

[엄마친구아들 (Love Next Door) OST Part 2] 하성운 (HA SUNG WOON) – What are we MV
What are weHA SUNG WOON

The OST for the drama Love Next Door, released in September 2024.

Sung by Ha Sung Woon, a former member of Wanna One, this piece is a sweet yet bittersweet ballad that portrays a relationship shifting from childhood friends to lovers.

His clear, delicate vocals beautifully capture the nuanced emotions that sway between friendship and romance.

Featured during the drama’s highlight scenes, this song plays a key role in moving the audience.

Highly recommended for those who want to empathize with the feelings of being in love—it will surely deepen your feelings for someone special.

While you were sleeping

It’s youHenry

The song begins abruptly, with no intro.

The vocalist’s sweet voice and the gently, softly played piano tug at the heart.

From there it keeps accelerating, building up until the chorus reaches a fever pitch.

The breathy, strained high notes convey an intense sense of urgency.

[Korean Drama OST] Classic Popular Songs That Color the Story: Best Masterpieces (21–30)

from now onKim Min-seon

김민승 Kim Min Seung – 앞으로 From now on (역도요정 김복주 OST PART 2) Official M/V
from now on Kim Minseon

It’s an upbeat, fast-tempo song that plays during bright scenes in the drama, and it makes you want to start dancing.

The singer is male, but his voice is quite high for a man, so it’s surprising at first; still, his distinctive tone is addictive and makes you want to listen again and again.