A2O LITE has nine members: YOUNG, OA, AYUNE, AIJING, HIMEKI, RADA, XILI, VORA and MERCI. Their backgrounds include child modelling, advertising and vocal competitions. Here is a member-by-member introduction, with dates, names and individual portrait links to help you put faces to the lineup.
A2O’s company announcement confirms the nine-member roster. For the debut song, release timeline and producer credits, start with our A2O LITE and “NEON” introduction. This companion guide focuses on the people performing it.
Find a member: YOUNG · HIMEKI · VORA · XILI · RADA · MERCI · AYUNE · OA · AIJING
A2O LITE birthdays, from oldest to youngest
| Member | Birthday | Age | Nationality |
|---|---|---|---|
| YOUNG | 27 October 2008 | 17 | South Korean |
| HIMEKI | 5 October 2009 | 17 | Japanese |
| VORA | 10 February 2010 | 16 | South Korean |
| XILI | 6 November 2010 | 15 | Chinese |
| RADA | 11 April 2011 | 15 | Thai |
| MERCI | 31 May 2011 | 15 | Chinese |
| AYUNE | 29 January 2013 | 13 | South Korean |
| OA | 8 February 2013 | 13 | US and Japanese |
| AIJING | 24 April 2013 | 13 | Chinese |
Birthday source: ELLE Japan’s 16 October member profiles. Nationalities were cross-checked with Gukje News’s member introduction. The ages are our calculations from those reported birthdates.
YOUNG turns 18 on 27 October; XILI turns 16 on 6 November.
Birthplace details appear in OA’s and AIJING’s profiles. Other city-level claims remain unverified in the sources checked for this guide.
YOUNG — 영
Reported name: Jeong Si-young. YOUNG is the oldest member. FLAT9 Academy’s published update identifies its former student Jeong Si-young as YOUNG and says she entered A2O through an audition held at the academy. That provides a specific public milestone in her training before the group’s debut.
Read the FLAT9 Academy update; its text is also carried in the academy’s public news feed. View YOUNG’s profile portrait at Soompi.
HIMEKI — 히메키
HIMEKI is Japanese and the group’s second-oldest member. Harper’s Bazaar Vietnam’s debut profile reports child-modelling experience. Look for 히메키 in Korean video titles.
View HIMEKI’s profile portrait at Soompi.
VORA — 보라
Reported name: Lee Eun-ji. VORA’s public background includes advertising work: Gukje News reports a childhood Capri-Sun advertisement. The same introduction reports that she speaks Korean, Chinese and Japanese.
View VORA’s profile portrait at Soompi.
XILI — 시리
Reported name: Liang Xili. Harper’s Bazaar Vietnam traces XILI’s public A2O Rookies introduction to October 2024. Its profile highlights her opening choreography and showcase dance performances.
View XILI’s profile portrait at Soompi.
RADA — 라다
Public name: Rada Kanjanapruk. RADA is the Thai member, with a documented vocal-competition background. The American Protégé organizer’s 2021 results list her among the First Place Winners in Classical Repertoire for Young Singers aged 5–10.
Khaosod English’s 20 October profile also reports that she began singing lessons at four, plays piano and voiced young Anna in the Thai dub of Frozen 2. Those credits give her introduction a musical history beyond her first K-pop release.
View RADA’s profile portrait at Soompi.
MERCI — 메르시
Reported name: Ma Xitong. MERCI worked as a child model and appeared in A2O Rookies before joining LITE, according to Harper’s Bazaar Vietnam’s profile.
View MERCI’s profile portrait at Soompi.
AYUNE — 아윤
Reported name: Shim Ah-yun. AYUNE is South Korean and had worked as a child model before joining LITE. Aju Economy’s 19 October profile documents that background; Harper’s Bazaar Vietnam supplies her reported name.
View AYUNE’s profile portrait at Soompi.
OA — 오아
Reported name: Oa Angel. OA holds US and Japanese citizenship. Harper’s Bazaar Vietnam reports her birthplace as Osaka Prefecture, Japan. It also places her A2O Rookies introduction in September 2025 and mentions the pre-debut project “Summer Night.”
View OA’s profile portrait at Soompi.
AIJING — 아이찡
Reported name: Sheng Aijing. AIJING is the youngest member by the birthdays above. Harper’s Bazaar Vietnam reports Beijing, China, as her birthplace. Gukje News’s introduction describes street-dance competition experience before debut, adding context to her early performance work.
View AIJING’s profile portrait at Soompi.
Match the names to the official profiles
The birthday table uses age order; the official profile announcement uses a different sequence. Soompi’s 14 October report presents individually labelled official portraits for all nine. Each portrait link above opens that member’s image on Soompi’s site.
Learn a few names at a time, then return to the group’s performances with those faces in mind. For the official music video and dated stage choices, continue to our “NEON” viewing guide.
Birthdays and pre-debut biographies follow the linked reporting. Named official portraits provide the face references; the press-arrival photographs show different public moments without assigning names to faces. Photograph sources and reuse licences checked 24 October 2026.
Prepared with AI assistance from the linked sources. About our editorial process and corrections.
Watch after reading
A2O LITE — “NEON” Official Video
Official upload: A2O LITE · 12 October 2026. The digital single followed on 13 October. Watch the official video on YouTube.
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