Kang Xiwon (Siwon) placed 36th in Produce 101, losing in the eighth episode by one rank to Lee Suhyun who went on to place 13th. She was signed to Dream T immediately after, then was announced as a member of predebut group UNI, and is now debuting solo under TNK.
source: 1theK, Mnet Official (2), THE K-POP : SBS PLUS, KBSKpop
i'm honestly really happy to see her FINALLY debut (yu sua next!) and her skills have skyrocketed which is awesome but i have a lot of questions for this 'sohn jisoo' who directed this low budget mess of a video, and for whoever picked this song