[4] Having enjoyed drawing since childhood,[6] Pony kept a blog on Cyworld and also began practicing make-up looks while she was a third-year high school student.

[6] In 2010, she was approached by a publisher to write a series of books on make-up tips, which were later released in 2011, 2012, and 2014 in Taiwan, Thailand, Indonesia, China, and Japan.

[7][10] This has been helped by her providing English subtitles to her videos and focusing on a diverse range of make-up looks for a global audience.

[2][13] In addition to speaking her native language, Korean, Pony is also fluent in English.

[14] In 2018, Pony became a brand ambassador for Bobbi Brown,[15] including releasing a promotional song titled "Outta My Mind.