[5][6] In January 2016, Kim participated in the Mnet reality-survival program Produce 101, which aimed to form an eleven-member girl group that would promote for a year under YMC Entertainment.

After the official disbandment of I.O.I on January 29, 2017,[9] Choi and Kim traveled to the United States to film their reality show, Dodaeng's Diary in LA which aired on TVING.

Doyeon made her debut as a member of Weki Meki on August 8, 2017, with the release of the single "I Don't Like Your Girlfriend" and the six-track EP Weme.

Choi and Kim, together with Seola and Luda of Cosmic Girls, released the single "Strong" on June 1, 2018, along with its accompanying music video.

[27] On March 1, 2022, Doyeon was chosen by global makeup brand Bobbi Brown and launched a new campaign "The Radiant Power Fair", in partnership with Lachica's Shimizu.

[28] On August 10, 2023, Kim was cast in the film "18 Youth" alongside Jeon So-min, in which she plays a 18-year-old high school student who is annoyed by her eccentric homeroom teacher.