In order to fall asleep somehow, I showered again
I keep drawing your face out on the ceiling and when I close my eyes,
A book with the story of our ended love opens

Even after you left, you torture me like this
How did I become this miserable?
What did I do wrong?
Why did we even break up? I don’t know

Cause you’re like caffeine, I can’t fall asleep all night
My heart keeps racing and again, I hate you
Like caffeine, I try to stay away
I try to forget about you but I can’t do it, I can’t help it

You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, so bad to me, yeah

Each time I breathe, I miss you
When I think that we’re living under the same sky, I go crazier
Though I’m like this, I can’t let you go
I see that couple fighting outside my window
They look like us in the past and tears well up
Look, don’t do that and just hug her
Look at me, how do I look right now?

Can’t you give me a chance to hold onto you?
Our relationship wasn’t something that could end so easily
Or am I mistaken?
Why did we even break up? I don’t know
Cause you’re like caffeine, I can’t fall asleep all night
My heart keeps racing and again, I hate you
Like caffeine, I try to stay away
I try to forget about you but I can’t do it, I can’t help it

Even though I hate you like this
When I think about the times we were together, I smile
Maybe I don’t want to forget you
Yes, I don’t want to forget you
I want to cherish you

Cause you’re like caffeine, I can’t fall asleep all night
My heart keeps racing and again, I hate you
Like caffeine, I try to stay away
I try to forget about you but I can’t do it, I can’t help it

You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, so bad to me, yeah

Romanized:
Neujeonne jaya doeneunde meorissoge yangeun beolsseo da sesseo
Eotteokedeun jamdeureo boryeo haetdeon syawodo tto dasi haesseo
Cheonjange ni eolguri jakku geuryeojigo nungameumyeon
Kkeutnabeorin uri storyga damgin chaegi pyeolchyeojigo
Neon tteonagan huedo nal ireoke goerophyeo
Eojjeodaga naega ireokekkaji goerowo
Hage doen geonji naega mwol jalmotan geonji
Uriga wae ibyeoringeonjido moreuneunde

Cause ur like caffeine, nan bamsae jam mot deulgo
Simjangeun gyesok ttwigo geureodaga tto niga neomu mipgo
Like caffeine meolliharyeogo haedo
Ijeoboryeogo haedo geureol suga eojjeol suga eobtjanha

You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, oh girl you’re like caffeine
You’re bad to me, so bad to me, so bad to me, yeah

Sumeul swil ttaemada niga geuripda gateun haneul arae itda
Saenggakhanikka deo michinda ireomyeonseodo nan neol mot noha
Jeogi changmun bakk datuneun yeonindeuri boyeo jinan uri moseup gata nunmul goyeo
Ibwayo geureoji malgo geunyeol gamssajwoyo nal bwayo ireon naega eottae boinayo

Neol butjabeul gihoedo naegen jul su eobseonni
Geureoke swipge kkeutnabeoril gabyeoun sain
Anieotjannni anim nae chakgagin geonji
Uriga wae ibyeorin geonjido moreuneunde

Cause ur like caffeine, nan bamsae jam mot deulgo
Simjangeun gyesok ttwigo geureodaga tto niga neomu mipgo
Like caffeine meolliharyeogo haedo
Ijeoboryeogo haedo geureol suga eojjeol suga eobtjanha

Ireoke neol miwohadagado nan
Hamkkeyeotdeon sigan dorabomyeon useumi nawa
Eojjeomyeon itgi sirheun geonjido molla
Ani itgi sirheunga bwa ganjikhago sipeun geonga bwa

Cause ur like caffeine, nan bamsae jam mot deulgo
Simjangeun gyesok ttwigo geureodaga tto niga neomu mipgo
Like caffeine meolliharyeogo haedo
Ijeoboryeogo haedo geureol suga eojjeol suga eobtjanha

You bad to me, so bad to me, oh girl you like caffeine
You bad to me, so bad to me, oh girl you like caffeine
You bad to me, so bad to me, oh girl you like caffeine
You bad to me, so bad to me, so bad to me, yeah