She was originally set to debut as a member of Five Girls under Good Entertainment, along with G.NA, After School's Uee, Secret's Jun Hyo-seong, and Spica's Yang Ji-won.

Aside from performing with the group, she has appeared in several music videos including labelmate 2PM's "10 Out of 10" and Shinhwa's "Once in a Life Time".

Yubin also wrote the song "Hey Boy" for the group's mini album Wonder Party released on June 3, 2012.

In 2013, she made her official acting debut in OCN's drama, The Virus, where she played the role of Lee Joo-yeong, a genius hacker and an IT specialist.

Yubin was one of two members who chose to remain with JYP Entertainment as solo artists and renewed her contract.

[10] On May 15, JYP Entertainment announced that she has finished filming the music video for the lead single, which is planned to be released alongside her album in early June.

[15] On November 27, 2018, Yubin's first EP #TUSM was released digitally alongside the title track "Thank U Soooo Much".

[16] The song's lyrics tell off a former partner for providing "too much information" during a breakup, sarcastically thanking them for their unnecessary revelations.

In April 2019, Yubin served as a judge for the JTBC dance competition television show Stage K.[17] On October 30, Yubin released her third single album, Start of the End, alongside lead single "Silent Movie" featuring Yoon Mi-rae.

[21] Since, she has also released the special single "Wave", in partnership with CLEF Entertainment on their project "Traveller", in December 2020.