Stage Name: Go Won (고원)
Birth name: Park Chae Won (박채원)
Birth date: November 19, 2000 (18)
Color: Eden Green
Solo Single: "One & Only"
Debut Date: January 30, 2018
Sub Unit: LOOΠΔ/yyxy
Nickname: Cha Cha, Vanilla, Chae-I
Eleventh member of LOOΠΔ and a member of its third sub-unit, LOOΠΔ/yyxy.