The group CIX (CIX) achieved a career-high and completed their activities of 'OK' Prologue: Be OK (OK Prologue: Be OK).

CIX (BX, Seunghoon, Bae Jin-young, Yong-hee, Hyun-suk), who made a comeback in six months after releasing their first full-length album "OK" Prologue: Be OK" August 17th of last month, aired on September 8th, MBC M's "Show!" The four-week activities ended with the "Champion" stage.

CIX, which colored the music industry this summer with a variety of charms, has established its position by writing meaningful results in this activity. Upon their comeback, the group succeeded in ranking first and lining up the Bugs real-time music charts, and topped the iTunes album charts and top song charts in many overseas regions, including Israel, Philippines, Thailand, Vietnam, Turkey, and Indonesia. It also surpassed 110,000 initial sales, breaking its record through this album.