Romanization:

[chorus1]
My baby~ I love you so much forever you and I
I love you oh~I love you so much forever you and I
My baby~ I love you so much forever you and I
I love you oh~I love you so much forever you and I

Jinagan shigandurur moduda doedollirsun obgejyo
hana dul sahyo ganun gogjongdo modu ne thashigeji
haruga jinagago ithur amu uimiga obso
no obnun isungani negenun amu nukimdo obso
TELL ME~

[chorus2]
PLEASE TELL ME WHY~
we narur tonagasso~
PLEASE TELL ME WHY~
saranghanun narur dugo~ TELL ME
PLEASE TELL ME WHY~
nege dashi dorawajwo~
jinan aphun giogdurun modu igoso uri dashi shijaghe
BABY~

[chorus1 repeat]

[rap]
YOU ASK GIRLFRIEND
otohge jine nodo margajin nega babo gathun namjarago
muongarur irhoborin god chorom uri ane gu ane
gasume gumongi nan god chorom hojonhe yojonhe
hanbon shijag doen nunmurun deche marujiga anha
yothe hogshi majuchirka niga jajugodnun gorirur
duribon duribon gorimur hago ganun ne mosubur bomyon
no temunin gor MY GIRL
hanbon jumun no yogshi non nawa hamke gadon gu gosur chajaganun jido molla
dashi nege dorawajwo MY SWEET HEART

[chorus1 repeat]

[chorus2]
PLEASE TELL ME WHY~
we narur tonagasso~
PLEASE TELL ME WHY~
saranghanun narur dugo~ TELL ME
PLEASE TELL ME WHY~
nege dashi dorawajwo~
jinan aphun giogdurun modu igoso uri dashi shijaghe
BABY~

[chorus1 repeat]

Na jigum yogi inunde
nor hangsang gidarinunde
otohge heya hanunji doedollisun obnunji
dashi nege dorawajyo~

Translated:

Chorus 1
My baby~ I love you so much forever you and I
I love you oh~I love you so much forever you and I
My baby~ I love you so much forever you and I
I love you oh~I love you so much forever you and I

Time may pass,
But I can't make any of it return
One, two, my worries are piling up
I will blame myself for everything.
Days have passed, but nothing has meaning any more.

This moment without you
To me is like having no emotions at all
Tell Me~

Chorus 2
Please tell me why~
Why did you go and leave me?~
Please tell me why~
Love has left me, Tell me
Please tell me why~
Come back to me again
I've forgotten all those memories if pain in the past
So we can start again, Baby~

Repeat Chorus1

Rap
You ask girlfriend
How have you been?
It may seem clear to you that I am like a foolish man
This thing in us is like something we've forgotten
Its like I have a hole in my heart that is still empty
Once my tears start I can't seem to dry them
I often walk hoping to run into you
I look around if you look at me
It's because of you, My Girl
Just once you will too
I don't know you looked for me there
At that place where you and I went together
Come back to me again, My sweet heart

Repeat Chorus1

Repeat Chorus2

Repeat Chorus1

I am here now
I'm always waiting for you~
What should I do?
I can't make any of it return!
Come back to me again~

Repeat Chorus1

Credits to: bloody_angel @ soompi