***Englsih Translation***

What do I do, unni?
Listen to what I say
I, unni, do not
Understand people

I'm always so clumsy
You only make fun of me
Am I really pretty?
You can say that I am

Make an original nickname
For example Goongdi Soondi
If you like it, raise your hand high
I'm really the NU ABO

Mystery, mystery
Don't know, don't know
I don't know yet
Basic, basic love formula
People's breakup formula

Hysteric, hysteric
Different, different
I'm too different
My way, my
Good, good, NU ABO*

Listen to what I say, unni
I'm in the trance
What are these feelings now
It's a first for me
My heart is pounding
As if I'm dreaming
I'm floating to the clouds
It must be love

Fight exactly three times
Don't say goodbye when breaking up
When you miss me and think of me
Touch your couple ring

Mystery, mystery
Don't know, don't know
I don't know yet
Basic, basic love formula
People's breakup formula

Falling in love is such an amazing thing
I can't forget these feelings that belong to me alone
I have them just as they are, new and a little bouncy
Like raising my dreams

It's like having my own unforgettable feelings.
It's like taking care of my own dream by coming about freshly.

Mystery ABO
All of it is you
It's exactly you

What you, what you call
What you, what you, what you call

Yes, this is how we do it
Our love f(x) (Yeah, yeah)
Yeah, this is how we do it
Pure love f(x) (Yeah, yeah)
Yeah, this is how we do it
Baby, love f(x)

How is this look?
What do I do if this is who I am?
I'm special when you're by my side

Mystery, mystery
Don't know, don't know
I don't know yet
Basic, basic love formula
People's breakup formula

Yeah, this is how we do it
Pure love f(x) (Yeah, yeah)
Yeah, this is how we do it
Baby, NU ABO

***Romanization***

Hey, yo, na eotteokhaeyo eonni nae mareul deureobwa
Naegeu sarameul eonni moreu gesseoyo
Cham eongttung hada mannal naman nolliji
Naega jeongmal yeppeo geureota myeondwae

Dokchang jeok byeolmyeong jigi yereul deulmyeon gung disundi
Mame deureo son beonjjeok deulgi jeongmal nan NU ABO

Mystery, mystery molla molla, ajik naneun molla
Gibon gibon sarang gongshik saram deure ibyeol gongshik
Hysteric, hysteric, dalla dalla, naneun neomu dalla
Nae mamdaero nae tteutaero joha joha NU ABO

Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana NU ABO

Naemal deureobwayo eonni, I'm in the trance
Jigeumi gam jeongeun mwojyo nan cheo euminde
Gaseum dugeun dugeun machi kkum kkuneun deu
Nan gureum wireul dung dung sarangin gabwa

Ttak sebeon ssawo bogi heyeojil ttae insa anhki
Bogo shipeun na saenggak deulttaen keopulling manjyeo bogi

Mystery, mystery molla molla, ajik naneun molla
Gibon gibon sarang gongshik saram deure ibyeol gongshik
Hysteric, hysteric, dalla dalla naneun neomu dalla
Nae mamdaero nae tteutaero joha joha NU ABO

Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana NU ABO

Sarange ppajingeon neomu meojin irinde
Namane gam jeongeun monijeul geudaero ganeun geol, yeah
Saeropge jom twige machi kkumeul kiwoga neungeo
Mystery ABO geugeon moduda neo ingeol baro neoran geol, oh

What you, what you call, what you, what you, what you call
Yes, this is how we do it, our love effects, yeah, yeah
Yeah, this is how we do it, pure love effects, yeah, yeah
Yeah, this is how we do it, bring it love effects, uh

Ireon moseubeo ttae igena ingeol eotteokhae
Naye gyeoten niga isseo teukbyeol hangeonde, yeah

Mystery, mystery molla molla, ajik naneun molla
Gibon gibon sarang gongshik saram deure ibyeol gongshik
Hysteric, hysteric, dalla dalla naneun neomu dalla
Nae mamdaero nae tteutaero joha joha NU ABO

Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana NU ABO
Nananana nana nananana nanananana NU ABO