KISS OF LIFE (키스오브라이프) is a four-member girl group under S2 Entertainment. The group is composed of Julie (쥴리), Natty (나띠), Belle (벨) and Haneul (하늘). They debuted on July 5, 2023 with the mini album "KISS OF LIFE".

S2 Entertainment explained, "The team name, which was conceived from words with the meaning of ''artificial respiration'' and ''Vitalization Center'', contains the ambition to ''breathe a new breath into the music industry with music and charm.'' The label, led by Chairman Hong Seung-sung, who went through JYP Entertainment and Cube Entertainment, announced the launch of a new girl group in late 2022.