KPOP 4th generation · OUI Entertainment
WEi
ウィアイ / 위아이
WEi gathered six people who had each debuted somewhere else before and built one team identity out of that shared history.
- 2020DebutOct 5, 2020
- 6Members
- 4thGeneration
- RUiFandom
Last updated:
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In 30 seconds: WEi
The IDENTITY trilogy runs soft and detailed; BYE BYE BYE is bright, Too Bad is light, and Spray is the sharpest of them.
Come here if you want performance and practice footage in quantity, with the expressions and the formations filmed separately.
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Key facts
- Group name
- WEi
- Reading / Hangul
- ウィアイ / 위아이
- Company
- OUI Entertainment
- Debut date
- October 5, 2020
- Days active
- 2,217 days (6 years, 0 months)
- Debut song
- TWILIGHT
- Generation
- 4th generation
- Fandom name
- RUi(ルアイ)
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Member guide
Profile comparison
| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| ヨハン | 1999-09-22 | 27 | 181cm | B | ISFJ | South Korea |
| ジュンソ | 2001-11-20 | 24 | 178cm | O | ESFJ | South Korea |
| ドンハン | 1998-07-03 | 28 | 182cm | O | ESTJ | South Korea |
| ヨンハ | 1999-01-11 | 27 | 177cm | A | INFP | South Korea |
| デヒョン | 1997-02-11 | 29 | 177cm | A | ESFJ | South Korea |
| ソクファ | 2000-12-01 | 25 | 172cm | B | ESFJ | 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.
TWILIGHT MVTWILIGHT is the debut and the gentlest introduction to the six.
BYE BYE BYE MVBYE BYE BYE is the brightest of the singles and the easiest first listen.
HOME MVThe 2025 release shows where the singing and the staging have arrived.MVView in JapaneseDance PracticeView in JapanesePerformanceView in JapaneseLiveView in JapaneseStageView in JapaneseAudioView in Japanese
View all official videos →05
From debut to now
- 2020IDENTITY: First Sight and TWILIGHT opened the run, presenting six voices and dance over soft pop.
- 2021All Or Nothing from Challenge and BYE BYE BYE from Action completed the debut series.
- 2022Too Bad on Love Pt.1 and Spray on Love Pt.2 arrived, and the Japanese release Youth widened the range.
- 2023OVERDRIVE tied the Love trilogy together, pushing bright melodies and dance momentum to the front.
- 2024The Japanese single WAVE and the digital single LOVE2YOU ran Japanese promotion and global streaming in parallel.
- 2025The Feelings with NOT ENOUGH, then Wonderland with HOME, marked the current position across two mini albums.
- 2026The digital single SAVE followed the long run of series releases with a fresh standalone track.
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Achievements
Key milestones
Verified information
Verified English information is not yet available for this section.
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Official links
Official social accounts and platforms
Shopping guide
Verified English shopping links are not yet available.
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KPOP DISCOVER's WEi note
WEi does not sit still inside breezy songs; stepping into something sharp like Spray is how the six show what they have learned. The official channel carries Performance versions and Dance Practice clips of the same track, so the difference between those videos is itself a way in.
Moving from TWILIGHT through BYE BYE BYE, Too Bad, Spray and HOME, the balance between brightness and force shifts a little at a time. Rather than memorising the album series names first, going back and forth between the MV and the choreography video of one song gets you there faster.
Editors' take It suits anyone who wants to compare video versions while looking for a favourite member.
Trivia worth knowing
Debut
WEi debuted with TWILIGHT on October 5, 2020.
Releases
The IDENTITY trilogy runs in the order First Sight, Challenge and Action.
Releases
The Love series forms a trilogy of First Love, Passion and Eternally.
Video
The official channel holds several versions of the same song: the single cut, the performance cut and dance practice.
Japan activity
Youth and WAVE stand apart as releases made for the Japanese market.
Fandom
The fandom name is known as RUi.
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Japan activity score
KPOP DISCOVER original metric
No. 132/ 241 groups
No. 132 of 241 groups with recorded activity in Japan (top 55%)
- 2Japanese releases
- 6Japan-related tracks
- 0Members from Japan
- 0Official Japanese accounts
The denominator is the 241 groups, out of 564 covered by KPOP DISCOVER, whose raw score reaches at least one point. The score adds 10 points per Japanese-market release, 3 per Japan-related track, 12 per member from Japan, and 8 per official Japanese account. Japanese-market releases carry the most weight because they are the most direct evidence of activity; related tracks add track-level detail; members from Japan stand for Japanese-language communication and continuity; official accounts stand for a permanent point of contact. The weights are an editorial judgement, not a statistical optimisation, and the ranking tracks release volume in Japan closely. Source: releases, tracks, members, and official links recorded by KPOP DISCOVER (updated 2026-10-28).
How this score is calculated →View in JapaneseFrequently asked questions
What defines WEi?
The IDENTITY trilogy runs soft and detailed; BYE BYE BYE is bright, Too Bad is light, and Spray is the sharpest of them.
Why should a new listener start with WEi?
Come here if you want performance and practice footage in quantity, with the expressions and the formations filmed separately.
Which songs should a new listener try first?
Start with TWILIGHT, BYE BYE BYE, HOME, then continue to the official video index.