CIX, short for 'Complete In X', is a South Korean K-Pop group formed by four members who bring their individual talents together to create a unified whole. The group consists of BX, SEUNG HUN, HYUN SUK, and YONG HEE.

Since their debut, CIX has released a series of successful EPs and singles, including 'HELLO, Chapter 1. Hello, Stranger' in July 2019, 'Revival' in April 2020, and 'OK' Prologue: Be OK in August 2021. Their discography showcases their growth and versatility within the K-Pop industry.