EPEX
WISH · MU · A-MIN · BAEKSEUNG · AYDEN · YEWANG · JEFF
Group Profile
EPEX is a South Korean boy group formed by C9 Entertainment. The group debuted on June 8, 2021 with the EP Bipolar Pt.1: Prelude of Anxiety and its title track “Lock Down.”
EPEX currently promotes as a seven-member team: WISH, MU, A-MIN, BAEKSEUNG, AYDEN, YEWANG and JEFF. Former member KEUM left the group in November 2025 following the end of his exclusive contract with C9 Entertainment.
The group’s 2024–2026 “Youth” project developed across three full-length albums and concluded with the June 9, 2026 EP Youth : Epilogue. The title track “ECHO” frames the next chapter of EPEX while highlighting a larger creative role for the members themselves.
Members
Career Milestones & Group Highlights
ECHO concert tour
EPEX followed its June comeback with the fourth concert ECHO, beginning in Seoul and continuing with overseas stops including Tokyo and Taipei.
Youth : Epilogue · ECHO
The seventh EP closed the group’s “Youth” series. All seven members participated in production-related work, including songwriting, composition, choreography, styling and recording direction.
Youth Chapter 3 : ROMANTIC YOUTH
The third full album continued the group’s long-form youth narrative.
Seven-member lineup
C9 Entertainment announced that KEUM’s exclusive contract had ended and that EPEX would continue as WISH, MU, A-MIN, BAEKSEUNG, AYDEN, YEWANG and JEFF.
Youth Chapter 1 & 2
The group released YOUTH DAYS and YOUTH DEFICIENCY, including “Youth2Youth” and “UNIVERSE.”
Debut · Lock Down
EPEX officially debuted under C9 Entertainment.
Official Videos by Year
2026 · ECHO
Watch on YouTube ↗2024 · UNIVERSE
Watch on YouTube ↗2024 · My Girl
Watch on YouTube ↗2024 · Youth2Youth
Watch on YouTube ↗2021 · Lock Down
Watch on YouTube ↗Official Social
News & Further Reading
Korean and international coverage, plus official references. Member-related group reports are labeled accordingly.
July 9, 2026 · Korean News · Star News · Korean-language articleEPEX announces China fan meeting and international ceremony plans ↗A dated report on the group’s overseas schedule.
June 9, 2026 · Korean News · Hankyung · Korean-language articleEPEX marks five years with Youth : Epilogue ↗Showcase coverage with members’ comments on the album.
June 5, 2026 · Korean News · iMBC · Korean-language articleEPEX members discuss their album production ↗Coverage of songwriting, choreography, styling and directing.
2026 · Official JapanEPEX official profile, news and schedule ↗June 2026 · OfficialYouth : Epilogue discography and track list ↗November 2025 · OfficialC9 statement on KEUM departure and seven-member lineup ↗