IU - The Story Only I did't know

Jeongmal neon da ijeotdeora
Bangapge nal boneun neoui eolgul boni
Geujeya eoryompusi apaodora
Sae sal chaoreoji motan sangcheoga
Nunmuran heureuji anteora
Ibyeorira haneun ge daedanchido motaeseo
Ireoke bojalgeoseobseoseo

Joheun ibyeoriran geo
Gyeolguk sesangeun omneun iriraneun geol
Aratdamyeon
Geuttae charani da ureoldul geol
Geutae imi naraneun geon
Negen kkeuchieotdaneun geon
Naman mollasseotdeon iyagi

Sarangeun anieotdeora
Nae gyeote meomuldeon shiganleossuel ppun
Ijeya oeryeompushi al geotman gata
Wae neon mianhaesseoyaman haenneunji
Naega neomu deultteosseonma bwa
Tteoneun sunganmajeo
Gidareul haesseotdani
Eolmana useuwotdeon geoni

Joheun ibyeoriran geo
Gyeolguk sesangeun omneun iriraneun geol
Aratdamyeon
Geuttae charani da ureoldul geol
Geutae imi naraneun geon
Negen kkeuchieotdaneun geon
Naman mollasseotdeon iyagi