KPOP 4th generation · C9 Entertainment
EPEX
イーペックス / 이펙스
EPEX have told one long story across the Youth Chapter records, and Do 4 Me is where listeners outside the fandom first caught on.
- 2021DebutJun 8, 2021
- 7Members
- 4thGeneration
- ZENITHFandom
Last updated:
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In 30 seconds: EPEX
The group debuted as eight and has worked as seven since Keum left in 2025, with releases and performance footage coming steadily in all three markets.
Start here if album-sequence storytelling appeals and you want it from a smaller label.
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Key facts
- Group name
- EPEX
- Reading / Hangul
- イーペックス / 이펙스
- Company
- C9 Entertainment
- Debut date
- June 8, 2021
- Days active
- 1,971 days (5 years, 4 months)
- Debut song
- Lock Down
- Generation
- 4th generation
- Fandom name
- ZENITH(ゼニス)
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Member guide
Profile comparison
| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| ウィッシュ | 2002-06-11 | 24 | 184cm | Not disclosed | Not disclosed | South Korea |
| クム | 2003-05-14 | 23 | 174cm | B | Not disclosed | South Korea |
| ミュー | 2003-09-14 | 23 | 185cm | Not disclosed | Not disclosed | South Korea |
| エイミン | 2004-05-22 | 22 | Not disclosed | Not disclosed | South Korea | |
| ベクスン | 2004-10-05 | 22 | Not disclosed | Not disclosed | South Korea | |
| エイデン | 2005-01-24 | 21 | 174cm | Not disclosed | Not disclosed | South Korea |
| イェワン | 2005-03-12 | 21 | Not disclosed | Not disclosed | South Korea | |
| ジェフ | 2005-04-21 | 21 | Not disclosed | Not disclosed | South Korea |
Ages are as of 2026-10-31.
Selected releases
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Start here
Follow a few songs from the starting point to the group's current sound.
Youth : Epilogue
Lock Down MVLock Down is the debut and the beginning of the whole sequence.
Do 4 Me MVDo 4 Me is the single that travelled, and the easiest first listen.
Youth2Youth MVYouth2Youth shows the current sound and how the stage design has changed.MVView in JapaneseDance PracticeView in JapanesePerformanceView in JapaneseLiveView in JapaneseStageView in JapaneseAudioView in Japanese
View all official videos →05
From debut to now
- 2021Lock Down from BIPOLAR Pt.1 was the debut, and Do 4 Me the same year set out both a dark world and a bright picture of boyhood.
- 2022Anthem of Teen Spirit and Hymn to Love carried the Prelude series forward, pairing adolescent unease and love as facing themes.
- 2023Sunshower and FULL METAL JACKET widened both the lyricism and the aggression, deepening their colour as a boy group telling a long story.
- 2024Youth2Youth from the 1st Album Youth Chapter 1 : Youth Days moved them into the youth trilogy and took the top of the Circle Album Chart.
- 2025Through UNIVERSE, Picasso and so nice, and after the announcement that Keum was leaving, the work and the member routes centred on the seven-member line-up.
- 2026Youth : Epilogue and My Girl set out the sequel to Youth Chapter, in a period where the early eight-member form and the current seven need following separately.
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Achievements
4Wins
2Chart No. 1
4 awards · 2 chart No. 1s (compiled by KPOP DISCOVER, as of October 29, 2026)
Awards
Major wins
- 2023
Hanteo Music Awards HMA
- Emerging Artist“EPEX”
- 2022
Seoul Music Awards SMA
- Rookie of the Year“EPEX”
- 2021
Hanteo Music Awards HMA
- Rookie Award - Male Group“EPEX”
- 2021
Korea Culture Entertainment Awards KCEA
- Best New Male Artist“EPEX”
Charts and PAK
Peak chart positions
- Lock DownSpotify popular tracksNo. 1Streaming
- Youth Chapter 1 : YOUTH DAYSCircle Album ChartNo. 1Album
Sources and data (6)
Source: announcements by each award ceremony and official chart
Verified information
Verified English information is not yet available for this section.
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Official links
Official site
Official social accounts and platforms
Shopping guide
Verified English shopping links are not yet available.
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KPOP DISCOVER's EPEX note
What holds EPEX together is the youth concept of the Youth Chapter trilogy and where they stand after a change in the line-up. C9 Entertainment debuted the boy group on June 8, 2021 with Lock Down, starting as eight, but Keum left in 2025, and the current seven are Wish, MU, A-Min, Baekseung, Ayden, Yewang and Jeff.
Lock Down, Do 4 Me and Youth2Youth are the way in. The debut song gives the first impression, the signature song shows the appeal that reached beyond the fandom, and a recent song shows the current sound and how the stage is built, which makes for a natural run.
Separating the roles of voice, dance, visual and live presence brings out a depth in the team that the songs alone do not show. Lock Down, then Do 4 Me, then Youth2Youth carries the first impression, the signature song and the present.
Editors' take Lock Down / Do 4 Me / Youth2Youth — the Youth Chapter trilogy and the walk from eight members to seven, in three songs from a C9 boy group.
Trivia worth knowing
Name
EPEX comes from Eight Apex, folding the debut count of eight and a climb toward the top into the name itself.
Fandom
ZENITH means the highest point, pairing with the apex in the group name so that fans and members aim at the same summit.
Line-up
Keum's departure was announced in 2025, leaving Wish, MU, A-Min, Baekseung, Ayden, Yewang and Jeff as the seven active members in 2026.
Release structure
BIPOLAR and Prelude deal with anxiety and love, while Youth Chapter opens a longer story of adolescence, so the releases read best series by series.
Charts
Youth Chapter 1 : Youth Days took the top spot on the Circle Album Chart, the moment album-scale growth arrived.
Video
Lined up in order, Lock Down, Do 4 Me, Anthem of Teen Spirit, Youth2Youth, UNIVERSE, Picasso and My Girl trace the shift from darkness to an afterword on youth.
Frequently asked questions
What defines EPEX?
The group debuted as eight and has worked as seven since Keum left in 2025, with releases and performance footage coming steadily in all three markets.
Why should a new listener start with EPEX?
Start here if album-sequence storytelling appeals and you want it from a smaller label.
Which songs should a new listener try first?
Start with Lock Down, Do 4 Me, Youth2Youth, then continue to the official video index.