She decided early in her life that she wanted to pursue a singing career, but said it took two years for her to convince her father to agree with her decisions.

[2] Soojin was a trainee under DN Entertainment and was originally supposed to be a member of the South Korean girl group Vividiva under her stage name N.Na (앤나).

In addition, the duo revealed their styling secrets, various outfits, shopping tips and video pictorial 'Fashion Film'.

[17] On March 5, 2022, Cube Entertainment announced that they have officially terminated Soojin's contract after police investigations concluded that the accusers were not guilty of spreading false information.

[19] On October 16, 2023, it was announced that Soojin signed an exclusive contract with BRD and was preparing to make her solo debut the same month.

[20][21] A dance performance video was released on October 25, entitled "Black Forest", teasing her upcoming solo debut.