단금지계斷金之契 (끊을 단, 쇠 금, 갈 지, 맺을 계)
dangeumjigye
EN단금 (sharp enough to cut metal) and 지계 means relationship, wo we have `a relationship which can cut metal` meaning strong friendship
dangeumjigye
EN단금 (sharp enough to cut metal) and 지계 means relationship, wo we have `a relationship which can cut metal` meaning strong friendship