[2][3][4] Growing up in a family with several members in the armed forces (including her father, older brother, and other relatives), she originally considered a career in this field.

[12][unreliable source] On December 6, Winter participated in a tribute to her labelmate and SM Entertainment senior BoA, in celebration of her 20th anniversary, and performed a cover of her song "ID; Peace B" at the 2020 Mnet Asian Music Awards.

The group made their debut on New Year's Day at the 2022 SM Town Live Concert with the single "Step Back", which was officially released on January 3.

[15] In the same year, she released a duet with fellow aespa member Ningning called "Once Again" as part of the official soundtrack of the South Korean drama Our Blues.

[18] In 2023 she released a collaboration with Super Junior's Yesung called "Floral Sense" for his second studio album's reissue, Sensory Flows.

[19] Months later, Winter, along with Im Si-wan, were appointed as the ambassadors of the 2024 World Team Table Tennis Championships which would be held in Busan, the hometown of both singers.

[21] In the same month, she was announced to be a part of the official soundtrack of the South Korean drama Castaway Diva and released the song "Voyage" on November 19.

[22] Winter was also revealed to be part of the lineup for the official soundtrack of the South Korean drama My Demon and released the song "With You" on December 8.