In December 2010, Coed School broke into sub-groups. The female members Lee Soomi, Heo Chanmi, Ryo Hyoyung and Jin Hyewon, with the addition of new member Seo Eungyo, became 5dolls. On January 20, 2011, 5dolls released two promotional videos featuring Jay Park, one called "Lip Stains" and the other one called "I Mean You" (or "It's You"). The group released its first mini album on February 16, 2011, and debuted on M! Countdown on February 17, 2011. During their live performances, the group received criticism for presumably lip synching. 5dolls released their second mini-album Time To Play on May 11, 2011, with their lead single "Like This Or That" (이러쿵 저러쿵) and the music video.
After a bullying scandal incriminating Chanmi and Eungyo against Soomi, Chanmi and Soomi decides to left the group, in February and summer respectively. Han Nayeon and Shannon were announced as replacements and, in February 2013, trainee Choi Jihyun was also said to be joining the group, thus becoming six. On July 8, 2013, the group officially announced that they would be returning at the end of the month with a new single called "Soulmate #1" as well as a new stage name, F-ve Dolls. However, of the three new members announced, only Nayeon stayed, and the other two gaps were filled by Cho Seung-hee and Oh Yeon-kyung. On July 31, 2013, their first digital single "Since 1971" was released with the music video of the title track "Soulmate #1". F-ve Dolls followed-up promotions with a new mini-album called "First Love", which was released on September 17. The group promoted with the song "Can You Love Me?", which features new T-ara N4 member Kim Dani, making it her debut. On 17 September 2013, a second version of "Can You Love Me?" music video and a music video for the song "Deceive" were released.
In November 2014, it was reported that F-ve Dolls was disbanded after their labels were renamed, and subsequently F-ve dolls was deleted from the official label's website. On March 10, 2015, the label confirmed the official disbandment of the group. It was stated that those members who still had a contract with the agency will be part of a new group. In September 2015, Cho Seunghee re-debuted with new group DIA, but she left the group the following year.