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Gunugurado jalmotggi wuh buhrin
Danchu hana chuhrum
Utgal lyuh buhri nun nal itgehjo

Nan mitgo it sut jiman sol jik
Han ma um weh myun han duh
Muluh juh ganun dwit mo soop
Bomyuh ahmoo mal halsoo upsuhjo

Jigum e dero jun hago shipuh
Jamgyuh itdun maum ehyul sweh ga
E gasum sokeh bitnago itsuh yo
Duh wook gang hage jikigo shipuh
Sel soodo upshi man eun chuwukul
E uh joogo itnun e room eun
Just a Key of Heart

(I believe love to heart)
(I believe love to heart)

Mian hadago e yagi handa
Myun al soo it suhdo
Honja suh mal hal soon upgehjo

Gu dero jigum nawah gattun
Senggak hago itnun guh jo
Un myung e woo ril buru nika
Gude rul hyanghae gahnun kul

Jigum e dero jun hago shipuh
Jamgyuh itdun maum eh yul sweh ga
E gasum sokeh bit nago it suh yo
Nunul gamunche, gido halkke Yo
Doogun guhrinun e maum modoo
Gude eh gaejunhae jidorok
Just a Key of Heart

Woo yunhee gude mannan kijukdo e
Sesanghae taeuh nana uy mido
Juhmada suhro gasumhae saeginche
Mang sullim upshi jap atdun
Gudewa naman uy jakeun yaeghee nun
Kutnaji anke hago shipuh
Just a Key of Heart

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