Je Seong-Eun made her literary debut upon receiving the Saebeot Literature Award.

Her works include Adolescent Son Vs. Menopause, Adolescence Vs. Menopausal Dad, Adolescence Vs. Menopause, Adolescence Vs. Middle School Life, So Many Gaeddongs, Excuse Making Contest, Chuchu and Speaker Mimicing Everything, Nitpicking Center, Group Chat Room Ghost, Group Chat Room Family, Group Chat Room Shopping Spree, Noise Collecting Apartment, I Report My Influencer Mom, Moonlight Angel Fox with Nine Tails, A Secret of Word Chain Game King, Tomorrow Four-Cut Photo Studio: We Take Pictures of Tomorrow, Making Sister’s Phone a Zombie, Rumor about My Bias, I Wish I Had Not Seen It, Internet Dad, and Random Family.