So Didn't Know by Lee Dong Ha OST Operation Proposal

Maji motaeseo chamgoinneun
Nae nunmureul boigin sirheo
Doraseo nungama
Nan naega sirta neodo mipda
Wae mal motago seoseongigimanhae
Geuraeseo nan mollatda

I babogateun saranga geureoke barago baraewatdeon geoseul
Ireoke nochigo tto gaseumeul chimyeo
Tto i bameul jisaeuna

Saranginjuldo moreugo neoreul ireoke
Dasi irheo beorin nae jasini mipda
Siganeul dollyeodo
Neo hana motjamneun nan babonikka

Nae gyeoten hangsang nega itda
Eonjerado geureoljul aratji
Ireon nareul nal yongseohae

I babo gateun saranga
geureoke
Barago baraewatdeon geoseul
Ireoke nochigo tto gaseumeul chimyeo
Tto i bameul jisaeunda

Saranginjuldo moreugo neoreul ireoke
Dasiirheo beorin nae jasini mipda
Siganeun dollyeodo
Neo hana motjamneun nan babonikka

Son naemilmyeon nega daheulgeonde
Nunapeseo neolbonaemyeo
Ijeseoya alge doengeolkka?

Ijen malhal su inneunde saranghae
Neomaneul na saranghandago
Seoreoun maeume aetage bulleodop
Neon doraboji annneunda

Saranginjuldo moreugo neoreul ireoke
Dasi irheobeorin nae jasini mipda
Siganeul dollyeodo
Neolhana motjamneun nan babonikka