[Verse 1: Wonpil, Young K]
Why the hell then
Didn't you know
It must end
Are you having regrets?
A harsh word
What is that
Difficult in the end
Did I turn my back on you

[Pre-Chorus: Wonpil, Young K]
To fix us who is broken
I guess it's too late to struggle

[Chorus: Wonpil]
If only I knew sooner
If only I noticed
I wanted you
Did you give me a flower

[Post-Chorus: Young K]
I know now
All that you wanted
Even if I give it all
You won't laugh
As it hurts
Because you were sick
[Verse 2: Wonpil]
After it ends
I'll do better
I only want
Ordinary things

[Pre-Chorus: Young K, Dowoon]
To catch your lost heart
It's too late to try

[Chorus: Wonpil]
If only I knew sooner
If only I noticed
I wanted you
Did you write me a letter

[Post-Chorus: Young K]
I know now
All that you wanted
Even if I give it all
You won't laugh
As it hurts
Because you were sick

[Bridge: Wonpil & Young K]
Will it make a big difference if I go back?
I was different before but
Because I am a person who is infinitely lacking
[Chorus: Wonpil & Young K]
If only I knew sooner
If only I noticed
I wanted you (wanted)
Did I give you all my love (Did I give it all)

[Post-Chorus: Young K, Wonpil]
I know now
All that you wanted
Even if I give it all (even if I give it all)
You don't look back (don't look back)
As it hurts
Because you were sick