She debuted as a singer-songwriter in December 2013, with her first single "A Song of Old Lovers" (우리 너무 오래 아꼈던 그 말).

Her albums were released by her independent music label helloeumak (안녕음악), before she established a partnership with Interpark Entertainment in 2017.

Her first song in Joa Band was "Life Is Unpredictable (Hot Choco)" (인생은 알 수가 없어 (핫초코)).

"), "길을 잃기 위해서" (Literal meaning: "For the purpose of getting lost"), and "A World Without Time" (10분이 늦어 이별하는 세상).

"잘 지내니 좀 어떠니", which was her first song to be introduced on a television show, "2 Days & 1 Night" of KBS2.

[6] In 2013, she started a small music label, helloeumak, with her friend Cheon See-woo (천시우) as an A&R executive.