The Letter

1

Serenade I (Hasun's Theme)

Park Sejun

2

A Long Way From Now

SE O

3

If I See You Again

Oh Yeon Joon

4

Tell me

EUNHA

5

If I Could Be By Your Side

Sung Si Kyung

6

Serenade II (Soun's Theme)

Park Sejun

7

Always

SEULGI

8

Winter After Winter

Haeun

9

That day, We.

BAEKHO

10

Light Saver

Yeeun Ahn

11

A Petal

Shin Nal Sae

12

Serenade III

Park Sejun

13

A Long Way From Now Instrumental

SE O

14

If I See You Again Instrumental

Oh Yeon Joon

15

Tell me Instrumental

EUNHA

16

If I Could Be By Your Side Instrumental

Sung Si Kyung

17

Always Instrumental

SEULGI

18

Winter After Winter Instrumental

Haeun

19

That day, We. Instrumental

BAEKHO

20

Light Saver Instrumental

Yeeun Ahn

21

Man Who Became King (Opening Title Version)

Lee Nyeom

22

A Failure

Lee Nyeom

23

Back to the dust

SONG JAE KYEONG

24

Before Fall Down

Park Sejun

25

Burning Sequence

Song Jin Seok

26

Change the World

Park Sejun

27

Communist Ideology

Song Jin Seok

28

Dark One

Park Sejun

29

End of Winter

Park Sejun

30

Evil Flowor

Park Sejun

31

Face off

Park Sejun

32

Firefly

Park Sejun

33

Frozen Tears

Park Sejun

34

Green Teacher

Park Sejun

35

Gretchen

Na Yoon Sik

36

Lose King's face

Park Sejun

37

My Reflection in the Lake

Park Sejun

38

Red Eagle

Park Sejun

39

Rewrite

Park Sejun

40

Ridiculous Trace

Song Jin Seok

41

Search Block

Park Sejun

42

Silent Eyes

Park Sejun

43

Sleepy

SONG JAE KYEONG

44

Snow Field

Park Sejun

45

Song For a Lover

Lee Nyeom

46

Stalking

Park Sejun

47

Storm Beat

Kim Dong Hyeok

48

The coup

Lee Nyeom

49

The End of the Road

Park Sejun

50

The Night Before Farewell

Lee Nyeom

51

The way of Truth

Park Sejun

52

Time of Blood

Park Sejun

53

To be Seen or Not

Park Sejun

54

Turning Point

Park Sejun

55

Who is Real

Park Sejun

56

Storm Beat (Ending Title Version)

Kim Dong Hyeok