Son debuted as an actress in the small screen under the name Lee Yoo-na in the 2004 SBS TV series Island Village Teacher.

[3] She then appeared in minor roles in the TV series Coffee House,[4] and the films You're My Pet and City in Blossom.

[7] Following her appearances in the two 2013 SBS TV series, Two Women's Room and One Well-Raised Daughter,[8][9] which established her career as an actress, she signed a contract with Diorgol Entertainment in 2014.

[11] In 2016, Son signed an exclusive modeling contract with YGKPlus,[12] and participated in 2017 as a runway model at the 2018 S/S Seoul Fashion Week for Moon Jung-wook's brand, Nineteeneighty, collection.

[1] During the 2020 S/S Seoul Fashion Week, Son appeared as the opening model for Nineteeneighty's collection.