[Romanized:] Iraetda jeoraetda Jeongmal al su eopneun neol Onjongil gongbuhaedo Nan eoryeowo Johatda silheotda Haruedo subaek beon no no no Rolleokoseuteo gateun neo Isanghaji naneun buranhaedo Neol nohchigin silheo Nan apado joha Iksukhan deut Neoege nae jeonbureul matgyeo Heartbreaker Neon almyeon alsurok deo Ihae hal su eopneun geol Heartbreaker Ginjangi pullin sungan Nae nun ape eopneun neo Japhil deut nohchil deut Kkeuteopneun jangnane Simjangi teojil geotman gatji nan waenji Heartbreaker Eodiro twilji molla Al su eopneun neoui maeum Nega johajyeo Achimbuteo nan wae iri Tto ne yeonrakman waiting Anjeolbujeolhan na Mwohalkka bappeulkka Gwireul jjonggeut sewo Tto tto tto tto Neoman gidarineun na Isanghaji naneun buranhaedo Neol nohchigin silheo Nan apado joha Iksukhan deut Neoege nae jeonbureul matgyeo Heartbreaker Neon almyeon alsurok deo Ihae hal su eopneun geol Heartbreaker Ginjangi pullin sungan Nae nun ape eopneun neo Japhil deut nohchil deut Kkeuteopneun jangnane Simjangi teojil geotman gatji nan waenji Heartbreaker Eodiro twilji molla Al su eopneun neoui maeum Nega johajyeo Jiruhaji anhaseo joha Mwonga teukbyeolhan nege kkeullyeo nan Ijeneun ne maeum deo algo sipeo Eotteon geot gata neowa na (love) Eoryeowodo nan gwaenchanheunde Cheoncheonhi nege nal majchwogalge Step by step naege neoreul allyeojwo A to Z neomyeon mwodeun gwaenchanha Heartbreaker Wae almyeon alsurok deo Ihae hal su eopneun neo Heartbreaker Ginjangi pullin sungan Nae nun ape eopneun neo Japhil deut nohchil deut Kkeuteopneun jangnane Simjangi teojil geotman gatji nan waenji Heartbreaker Eodiro twilji molla Al su eopneun neoui maeum Nega johajyeo Heartbreaker Heartbreaker Heartbreaker Ginjangi pullin sungan Nae nun ape eopneun neo Japhil deut nohchil deut Kkeuteopneun jangnane Simjangi teojil geotman gatji nan waenji Heartbreaker Eodiro twilji molla Al su eopneun neoui maeum Nega johajyeo [Korean:] 이랬다 저랬다 정말 알 수 없는 널 온종일 공부해도 난 어려워 좋았다 싫었다 하루에도 수백 번 no no no 롤러코스터 같은 너 이상하지 나는 불안해도 널 놓치긴 싫어 난 아파도 좋아 익숙한 듯 너에게 내 전부를 맡겨 Heartbreaker 넌 알면 알수록 더 이해 할 수 없는 걸 Heartbreaker 긴장이 풀린 순간 내 눈 앞에 없는 너 잡힐 듯 놓칠 듯 끝없는 장난에 심장이 터질 것만 같지 난 왠지 Heartbreaker 어디로 튈지 몰라 알 수 없는 너의 마음 네가 좋아져 아침부터 난 왜 이리 또 네 연락만 waiting 안절부절한 나 뭐할까 바쁠까 귀를 쫑긋 세워 또 또 또 또 너만 기다리는 나 이상하지 나는 불안해도 널 놓치긴 싫어 난 아파도 좋아 익숙한 듯 너에게 내 전부를 맡겨 Heartbreaker 넌 알면 알수록 더 이해 할 수 없는 걸 Heartbreaker 긴장이 풀린 순간 내 눈 앞에 없는 너 잡힐 듯 놓칠 듯 끝없는 장난에 심장이 터질 것만 같지 난 왠지 Heartbreaker 어디로 튈지 몰라 알 수 없는 너의 마음 네가 좋아져 지루하지 않아서 좋아 뭔가 특별한 네게 끌려 난 이제는 네 마음 더 알고 싶어 어떤 것 같아 너와 나 (love)
어려워도 난 괜찮은데 천천히 네게 날 맞춰갈게 Step by step 내게 너를 알려줘 A to Z 너면 뭐든 괜찮아 Heartbreaker 왜 알면 알수록 더 이해 할 수 없는 너 Heartbreaker 긴장이 풀린 순간 내 눈 앞에 없는 너 잡힐 듯 놓칠 듯 끝없는 장난에 심장이 터질 것만 같지 난 왠지 Heartbreaker 어디로 튈지 몰라 알 수 없는 너의 마음 네가 좋아져 Heartbreaker Heartbreaker Heartbreaker 긴장이 풀린 순간 내 눈 앞에 없는 너 잡힐 듯 놓칠 듯 끝없는 장난에 심장이 터질 것만 같지 난 왠지 Heartbreaker 어디로 튈지 몰라 알 수 없는 너의 마음 네가 좋아져 [English translation:] You're so wishy-washy I can't figure you out I study you all day But it's hard I like you then I hate you Hundreds of times a day, no no no You're like a rollercoaster It's weird, I'm nervous But I don't wanna lose you It hurts but I like it As if I'm used to it I gave my all to you Heartbreaker The more I get to know you The more I don't understand Heartbreaker The moment I start to relax You disappear from my sight Like I can catch you but I can't This endless game My heart is about to explode Heartbreaker I don't know where you'll go next I can't figure out your heart But I like you more and more Why am I waiting for your call Starting from the morning? I'm getting nervous What're you doing? Are you busy? My ears are tuned to you Again again again again I'm only waiting for you It's weird, I'm nervous But I don't wanna lose you It hurts but I like it As if I'm used to it I gave my all to you Heartbreaker The more I get to know you The more I don't understand Heartbreaker The moment I start to relax You disappear from my sight Like I can catch you but I can't This endless game My heart is about to explode Heartbreaker I don't know where you'll go next I can't figure out your heart But I like you more and more I like you because you're not boring There's something special about you, I'm attracted to you Now I wanna know your heart more What do you think? You and me (love) Though it's hard, I'm alright I wanna slowly adjust myself to you Step by step, tell me about yourself A to Z, if it's you, I like anything Heartbreaker Why is it that the more I get to know you The more I don't understand Heartbreaker The moment I start to relax You disappear from my sight Like I can catch you but I can't This endless game My heart is about to explode Heartbreaker I don't know where you'll go next I can't figure out your heart But I like you more and more Heartbreaker Heartbreaker Heartbreaker The moment I start to relax You disappear from my sight Like I can catch you but I can't This endless game My heart is about to explode Heartbreaker I don't know where you'll go next I can't figure out your heart But I like you more and more