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
TWILIGHT / Official MV

Last updated:

01

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.

02

Key facts

Group name
WEi
Reading / Hangul
ウィアイ / 위아이
Company
OUI Entertainment
Debut date
October 5, 2020
Days active
2,173 days (5 years, 11 months)
Debut song
TWILIGHT
Generation
4th generation
Fandom name
RUi(ルアイ)
03

Member guide

Profile comparison

MembersBirth dateBlood typeMBTINationality
ヨハン1999-09-2226181cmBNot disclosedSouth Korea
ジュンソ2001-11-2024178cmONot disclosedSouth Korea
ドンハン1998-07-0328182cmONot disclosedSouth Korea
ヨンハ1999-01-1127177cmANot disclosedSouth Korea
デヒョン1997-02-1129177cmANot disclosedSouth Korea
ソクファ2000-12-0125172cmBNot disclosedSouth Korea

Ages are as of 2026-09-17.

Selected releases

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Start here

Follow a few songs from the starting point to the group's current sound.

SAVE artwork

March 27, 2026 · Digital single

SAVE

View the full discography →
View all official videos →
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From debut to now

  • 2020
    IDENTITY: First Sight and TWILIGHT opened the run, presenting six voices and dance over soft pop.
  • 2021
    All Or Nothing from Challenge and BYE BYE BYE from Action completed the debut series.
  • 2022
    Too Bad on Love Pt.1 and Spray on Love Pt.2 arrived, and the Japanese release Youth widened the range.
  • 2023
    OVERDRIVE tied the Love trilogy together, pushing bright melodies and dance momentum to the front.
  • 2024
    The Japanese single WAVE and the digital single LOVE2YOU ran Japanese promotion and global streaming in parallel.
  • 2025
    The Feelings with NOT ENOUGH, then Wonderland with HOME, marked the current position across two mini albums.
  • 2026
    The digital single SAVE followed the long run of series releases with a fresh standalone track.
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Key achievements

Key milestones

2020Debut with IDENTITY: First SightFive tracks including TWILIGHT started the run of the six.
2022The Love series and a Japanese releaseTwo Korean mini albums and the Japanese release Youth came in the same year.
2025Two mini albumsThe Feelings and Wonderland followed one another, adding official MVs and choreography videos.

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.

12

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.

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Japan activity score

KPOP DISCOVER original metric
No. 120/ 210 groups

No. 120 of 210 groups with recorded activity in Japan (top 57%)

  • 2Japanese releases
  • 6Japan-related tracks
  • 0Members from Japan
  • 0Official Japanese accounts

The denominator is the 210 groups, out of 525 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 2026-09-17).

How this score is calculated →View in Japanese

Frequently 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.