The name comes from which company Eunbi and Chaewon are under, which is Woollim Entertainment. They became Karma Line because Eunbi's pre-competition interview was exposed after teasing Takahashi Juri in Produce 48. 3 years later: Chaewon was asked by Eunbi to perform 12 elephant spins, doing split and the ending pose of Fiesta for 5 seconds, after Chaewon unsuccessfully make Wonyoung to do it as she was wearing a dress.
In 2021, they also became LASIKZ as Chaewon became the second member after Eunbi to complete the corrective LASIK surgery for vision. In mid August, Eunbi made her solo debut, while Chaewon left Woollim Entertainment to join Source Music, with Sakura joining her in late August.
- Woollim Sisters
- Karma Line
|Name||Birth Date||Position||Final Rank||Label||Color|
|Kwon Eun Bi||September 27, 1995||Leader, Main Dancer, Lead Vocalist||7||Woollim Entertainment||Purple|
|Kim Chae Won||August 1st, 2000||Lead Vocalist, Lead Dancer||10||Woollim Entertainment||Mint|