The most common Korean word for “too” is 너무 (neomu). 「too」는 한국어로 너무.
Learn 너무 free — flashcards, audio and review →「너무」 단어장으로 무료로 외우기Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato