PRODUCE 101, a solo singer of Unpretty Rapstar former member Jeon So Yeon, a member of the new girl group "Idol".
* As the name house "CUBE Enter", following the 4 Minute and CLC, the girl group for the first time in 3 years.
* Debut at the end of April after PENTAGON comeback on April 2.
* Although it was not selected as an IOI, it is "a skilled person."