이 없으면

if there is no

→ 이
phrase Rare #20,924
if there is no Used after a noun to mean “if [something] is absent or unavailable.” The particle 이 marks the noun as the subject, and 없으면 means “if there isn’t.”
KO: 시간이 없으면 내일 만나요.
EN: If there’s no time, let’s meet tomorrow.

음악이 없으면 인생도 없어.

Without music, there is no life.

청명검이 없으면 넌 아무것도 아냐

Without the Cheongmyeong Sword, you're nothing.

— 와호장룡 (2000)