How it started…
Park ShinHye: 앞으로 전두엽 단속 잘하고 술도 조심하고 서로 닿지도 말자! (From now on, let’s keep our frontal lobes in check, stay away from alcohol, and no touching each other.)
Park ShinHye: 약속! (Promise!)
Park HyungSik: 약속! (Promise!)
Park HyungSik: 우리 닿지 않기로 했잖아… (Right. We said we shouldn’t touch each other.)
How it’s going…
약속 (pronounced yak-sok) means promise and is used in situations like this one from “Doctor Slump” and in other context surrounding making promises.