Her most notable works include her supporting role in hit drama Queen Seondeok, which received near-universal acclaim, winning over 20 awards and solidifying Qri's career in the field.

[6] She then attended Myongji University, enrolling in the Department of Film and Musical, the same class as fellow group member, Boram.

In 2004, she participated in the "2004 Korea National Ulzzang Contest" with Kang Eun-bi, which helped launch her career in modeling.

[8][9] In 2006, she appeared on the program Law of Immutable Love posing as a mistress sent by client's girlfriend, which sparked controversy among netizens in 2010.

Qri was signed to Sniper Sound, a hip-hop recording label and was supposed to debut as a bassist in a rock band called Six Colors.

It was later mentioned on tvN's Taxi that she was introduced to the CEO of Core Contents Media by her original company.

In September 2009, Qri made her major acting debut in the drama Queen Seondeok as Kim Yu-shin's wife.

[21] Qri, Boram and Soyeon formed a subgroup called QBS in May 2013, focused on the Japanese market.

[27] On December 3, 2013, she, along with groupmate Eun-jung attended and gave a congratulatory speech at the 2013 Fashion Pictorial Exhibition at Seoul Institute of the Arts.

[31] On September 29, It was revealed that Qri would be part of the main cast of the first Korean-Japanese joint short-form drama series, titled Nebula.

[11] In 2021, Qri became an advertising model for Castellbajac, she filmed multiple videos for the brand which were all released online.

[4] In 2018, Qri announced the launch of her first self-designed product collection with "Celebrity hat brand" Sebs named "Seb.Q" .

[33] The same year she launched her self-designed clothing brand "Choute.rie" which was sold in South Korea and also exported overseas.

[8] She has been a regular VIP guest at the Seoul Fashion Week since 2012, modeling for brands like GREEDILOUS,YCH and Holy Number7.

[17][43] The model has also successfully released several self-designed items and brands, solidifying her status in the Fashion industry.

She landed her first main role on Southern Trader Kim Chul Soo's Updates which received a nomination at 2010 KBS Drama Awards.

She personally delivered the donations to the organization's Headquarters and held an additional fan-sign event to celebrate the Chuseok holiday with Boram and Hyomin.