공격이

attack

→ 공격

phrase Rare #32,292

attack 이 is a subject marker attached to nouns ending in a consonant.

KO: 적의 공격이 시작됐어요.

EN: The enemy's attack has begun.

It doesn't matter if they attack from behind!

— 극장판 귀멸의 칼날: 무한성편 (2025)