izna (이즈나) is a six-member South Korean girl group under WAKEONE. The group was formed through Mnet’s survival program I-LAND 2: N/α, which concluded in 2024. The current lineup consists of Mai, Bang Jeemin, Koko, Ryu Sarang, Choi Jungeun and Jeong Saebi. The group’s name reflects confidence and the idea that anything can ultimately be defined as “me.” Wake One
izna originally debuted as a seven-member group, but Yoon Jiyoon officially concluded her group activities in August 2025. The group has continued as six members since then. Koreaboo
Members at a Glance
| Member | Real Name | Birthday | Age* | Nationality | Role |
|---|---|---|---|---|---|
| Mai | Tomioka Mai | October 28, 2004 | 21 | Japanese | Visual, performer |
| Bang Jeemin | Bang Jeemin | May 8, 2005 | 21 | South Korean | Center, visual |
| Koko | Narai Koko | November 14, 2006 | 19 | Japanese | Main dancer |
| Ryu Sarang | Ryu Sarang | April 18, 2007 | 19 | South Korean | Vocalist, dancer |
| Choi Jungeun | Choi Jungeun | August 4, 2007 | 19 | South Korean | Main vocalist |
| Jeong Saebi | Jeong Saebi | January 22, 2008 | 18 | South Korean | Vocalist, visual, maknae |
WAKEONE’s official profile confirms the current six-member lineup and birthdays. Wake One
Who Are the izna Members?
Mai (마이)
Mai is izna’s Japanese member and is associated with the group’s visual and performance side. She was one of the final contestants selected through I-LAND 2.
Key Facts:
- Stage Name: Mai
- Birth Name: Tomioka Mai
- Birthday: October 28, 2004
- Nationality: Japanese
- Agency: WAKEONE
- Position: Visual / Performer
- Group: izna Kpop Profiles
Bang Jeemin (방지민)
Bang Jeemin is one of izna’s central performers and is associated with the group’s center position. Her popularity during I-LAND 2 helped make her one of the most recognizable members of the final lineup.
Key Facts:
- Stage Name: Bang Jeemin
- Birth Name: Bang Jeemin
- Birthday: May 8, 2005
- Nationality: South Korean
- Agency: WAKEONE
- Position: Center / Visual
- Group: izna Kpop Profiles
Koko (코코)
Koko is izna’s Japanese main dancer and one of the group’s leading performance members. Her background includes extensive dance training before entering I-LAND 2.
Key Facts:
- Stage Name: Koko
- Birth Name: Narai Koko
- Birthday: November 14, 2006
- Nationality: Japanese
- Agency: WAKEONE
- Position: Main Dancer
- Group: izna Kpop Profiles
Ryu Sarang (유사랑)
Ryu Sarang is part of izna’s vocal and performance line. Her journey through I-LAND 2 led her into the group’s final debut lineup.
Key Facts:
- Stage Name: Ryu Sarang
- Birth Name: Ryu Sarang
- Birthday: April 18, 2007
- Nationality: South Korean
- Agency: WAKEONE
- Position: Vocalist / Dancer
- Group: izna Wake One
Choi Jungeun (최정은)
Choi Jungeun is one of izna’s principal vocalists and has been especially associated with the group’s vocal performance. She ranked first in the final I-LAND 2 rankings.
Key Facts:
- Stage Name: Choi Jungeun
- Birth Name: Choi Jungeun
- Birthday: August 4, 2007
- Nationality: South Korean
- Agency: WAKEONE
- Position: Main Vocalist
- MBTI: INTJ
- Group: izna Kpop Profiles
Jeong Saebi (정세비)
Jeong Saebi is izna’s youngest member and contributes to the group’s youthful performance identity. She was added to the debut lineup after the final producer selection.
Key Facts:
- Stage Name: Jeong Saebi
- Birth Name: Jeong Saebi
- Birthday: January 22, 2008
- Nationality: South Korean
- Agency: WAKEONE
- Position: Vocalist / Visual / Maknae
- Group: izna Wake One
izna: Who Is the Oldest and Youngest?
Mai is the oldest current member, while Jeong Saebi is the youngest and maknae. Wake One
Which izna Members Are Foreign?
izna has two Japanese members: Mai and Koko. The other four current members are South Korean. Wake One
izna MBTI Types
| Member | MBTI |
|---|---|
| Mai | Publicly reported; may change |
| Bang Jeemin | Publicly reported; may change |
| Koko | Publicly reported; may change |
| Ryu Sarang | Publicly reported; may change |
| Choi Jungeun | INTJ |
| Jeong Saebi | Publicly reported; may change |
Choi Jungeun’s more recent publicly reported MBTI is INTJ; earlier results had changed over time, illustrating why this section should be updated whenever members confirm new tests. Kpop Profiles
izna Group Profile
| Information | Details |
|---|---|
| Group Name | izna |
| Korean Name | 이즈나 |
| Members | Mai, Bang Jeemin, Koko, Ryu Sarang, Choi Jungeun, Jeong Saebi |
| Agency | WAKEONE |
| Debut Date | November 25, 2024 |
| Fandom Name | naya |
| Group Type | K-pop girl group |
| Formation Program | I-LAND 2: N/α |
izna Career Timeline
| Year | Major Career Highlight |
|---|---|
| 2024 | izna was formed through I-LAND 2 and debuted with N/a. |
| 2025 | Released BEEP and Not Just Pretty. |
| 2025 | Yoon Jiyoon concluded her group activities; izna continued as six members. |
| 2026 | Released SET THE TEMPO and HANDLE WITH CARE. |
The current Japanese official discography lists SET THE TEMPO in June 2026 and HANDLE WITH CARE in September 2026. izna JAPAN OFFICIAL SITE
izna Comebacks & Releases
izna’s discography includes N/a, BEEP, Not Just Pretty, SET THE TEMPO and HANDLE WITH CARE, reflecting the group’s progression from its debut-era image toward more varied concepts and sounds. izna JAPAN OFFICIAL SITE
izna Performances & Events
Since debut, izna has participated in music-show stages, fan events, festivals, award appearances and international promotions. Their activities have expanded alongside their Japanese and Korean releases. Wake One
izna FAQ
How many members are currently in izna?
Six.
Who are the current izna members?
Mai, Bang Jeemin, Koko, Ryu Sarang, Choi Jungeun and Jeong Saebi. Wake One
Who is the youngest izna member?
Jeong Saebi.
Who are the Japanese members?
Mai and Koko.
What is izna’s fandom name?
naya. Izna
What happened to Yoon Jiyoon?
Yoon Jiyoon concluded her group activities in August 2025 following a period of health-related hiatus, and izna continued as a six-member group. Koreaboo
When did izna debut?
November 25, 2024.