[3] In 2018, Kim participated in the South Korean survival show Produce 48 by Mnet, representing Woollim Entertainment alongside Kwon Eun-bi, and Su-yun and So-hee of Rocket Punch.Prior to joining the survival show, Kim trained under Woollim Entertainment for 11 months.She finished in 10th place earning 238,192 votes, allowing her to debut in Iz*One, with labelmate Kwon Eun-bi.She also contributed to writing lyrics for the song "Slow Journey", featured on Iz*One's final EP, One-reeler / Act IV.[9][10] On March 14, 2022, Source Music announced that Kim, alongside former Iz*One member, Sakura Miyawaki, signed exclusive contracts with the company, and was confirmed to debut in their new girl group Le Sserafim.