She was the first to leave the group at the end of 2004, publicly stating that she did not agree with the direction their record company DR Music was heading.

, which was released by the label CJ Music on December 16, 2005. The first single , "Oopsy," was a sexy dance number, allowing Shim to showcase her sexy dance moves (which she was best known for during her time as a Baby V.O.X member). She then moved on to a ballad as her second single, although it was not promoted heavily. Sales of the album were mediocre, although not abysmal. While promoting her album, she went on various variety shows, and launched her clothing line, Z'BAGO.

Dae Jo-yeong.

She had previously joined the Asia Top Gallery Hotel Art Fair in 2010.

Shim studied Interactive Multimedia Arts at Kyonggi University .

Baby V.O.X.

Solo artist

Zeeny's

1. Choking Day
2. The Blue Time (파란 시간)
3. At a Place Where Love Fades (사랑이 떠나는 길목에서)
4. You're Just Like Me (그대가 나인가봐요)
5. Oopsy
6. Erase
7. Better Dayz
8. Loving Alone (혼자 사랑하는 일)
9. Amnesia (기억상실)
10. Stop It
11. Heartache (가슴에 못이 박히게)
12. The Blue Time II (파란시간 II)

Contributions to other albums

1. My Love (My Little BrideOST)
2. Look (봐봐) - WAWA feat. Shim Eun-jin

Television series

• Rich Family's Son(MBC, 2018)
• The Love is Coming(SBS, 2016)
• Drama Special"Suspicious Ward No. 7" (KBS2, 2014)
• The Night Watchman's Journal(MBC, 2014)
• Love in Her Bag(jTBC, 2013)
• Pots of Gold(MBC, 2013)
• Can Love Become Money?(MBN, 2012)
• Yellow Boots(tvN, 2012)
• Kiss and the City(E Channel, 2010)
• The Great Merchant(KBS1, 2010)
• Swallow the Sun(SBS, 2009)
• Star's Lover(SBS, 2008)
• Life Special Investigation Team(MBC, 2008)
• Break(Mnet, 2006)
• Dae Jo-yeong(KBS1, 2006)

Film

• Will You Be There?(2016, special appearance)
• Woo-joo's Christmas(2016)
• Three Summer Nights(2015)
• The Treacherous(2015)
• Kong's Family(2013)
• Jenny, Juno(2005)
• Emergency Act 19(2002,cameo)

TV Show

• 8 vs 1(SBS, 2008)

1. Heo, Yeub (4 June 2001). "Babybox Seduce Chinese Continent with Korean Stream". The Dong-a Ilbo. Retrieved 2014-06-18. 
2. http://www.zbago.com
3. Lee, Hyo-won (14 March 2008). "Footballer Lee Dates Singer". The Korea Times. Retrieved 2014-06-18. 
4. Suh, Hye-rim (11 June 2013). "Ex-idol Shim Eun-jin to hold photo exhibition". The Korea Herald. Retrieved 2014-06-18. 
5. Lee, Sun-min (13 June 2013). "Shim Eun-jin launches personal show". Korea JoongAng Daily. Retrieved 2014-06-18. 
6. Min, Ines (23 August 2010). "Second Seoul hotel art fair returns". The Korea Times. Retrieved 2014-06-18. 
7. Jo Hyun-joo (April 2, 2017). "'복면가왕' 의기양양 정체는 베이비복스 출신 심은진". TenAsia (in Korean). Retrieved April 2, 2017.