Only I didn't know - IU

Jeongmal neon da ijoeotdeora

Bangapge nal boneun neoui eolgul boni

Geujeya eoryeompushi apaodeora

Sae sal chaoreuji mothan sangcheoga

Nunmureun heureujil anteora

Ibyeorira haneun ge daedanchido mothaeseo

Ireoke bojalgeo seobseoseo

Joheun ibyeoriran geo

Gyeolguk sesangen

Eomneun iriraneun geol

Aratdamyeon geuttae charari da ureoldul geol

Geuttae imi naraneun geon

Negen kkeuchieot daneun geon

Naman mollaesseotdeon iyagi

Sarangeun anieotdeora

Nae gyeote meomuldeon shiganieosseul ppun

Ijeya eoryeompushi al geotman gata

Wae neon mianhaesseo yaman haenneunji

Naega neomu deultteosseonna bwa

Tteonaneun sunganmajeo gidaereul haesseotdani

Eolmana ooseuwotdeon geoni

Joheun ibyeoriran geo

Gyeolguk sesangen

Eomneun iriraneun geol

Aratdamyeon geuttae charari da ureoldul geol

Geuttae imi naraneun geon

Negen kkeuchieot daneun geon

Naman mollaesseotdeon iyagi