MERCI (A2O LITE) Profile 2026: Age, Birthday, MBTI & Facts
MERCI is a Chinese singer and a member of the nine-member girl group A2O LITE, managed by A2O Entertainment-the label founded by SM Entertainment founder Lee Soo-man. She was born on May 31, 2011, in Huzhou, Zhejiang, China, and debuted with A2O LITE on October 13, 2026, through the digital single โNEONโ . Before joining the group, she worked as a child model for roughly eight years and trained under the A2O Rookies system .
At 15 years old at the time of debut, MERCI is one of three Chinese members in A2O LITE, alongside XILI and AIJING . The groupโs debut single reached No. 1 on Melonโs Top 100 chart within 29 hours of release, and the group took its first music-show trophy on The Show seven days after debut .
Quick Facts
| Category | Details |
|---|---|
| Stage Name | MERCI (๋ฉ๋ฅด์) |
| Real Name | Ma Xitong (้ฉฌ่ฅฟๆก / ๋ง์ํ) |
| Birthday | May 31, 2011 |
| Age | 15 (international age, as of 2026) |
| Nationality | Chinese |
| Birthplace | Huzhou, Zhejiang, China |
| Group | A2O LITE |
| Agency | A2O Entertainment |
| Position | Reported as ACE / all-rounder; no fixed position officially confirmed by the agency |
| Debut | October 13, 2026 (A2O LITE, โNEONโ) |
| Height | 161.2 cm (reported, not agency-confirmed) |
| Blood Type | AB (reported) |
| MBTI | ISTJ |
| Education | Huzhou Xiaoaishan Elementary School Education Group Founding Elementary School; Huzhou Maple Leaf Bilingual School (reported) |
| Family | Parents; one older sister |
Table of Contents
Who Is MERCI?
MERCI is a Chinese K-pop idol and a member of A2O LITE, the nine-member girl group launched by A2O Entertainment in October 2026. She is from Huzhou, Zhejiang, and trained through the agencyโs A2O Rookies program before appearing as a featured artist on A2O MAYโs 2025 single โB.B.B (Bigger Badder Better)โ . Her stage name, MERCI, is the French word for โthank youโ .
A2O Entertainment has not published a full official member profile with a fixed position. Chinese media reports and fan-facing profiles have described her as an ACE or all-rounder, with lead vocal and lead dance capabilities, but that label should be treated as reported rather than agency-confirmed .
Early Life and Education
MERCI was born Ma Xitong on May 31, 2011, in Huzhou, Zhejiang Province, China . Publicly circulating profiles list her family as her parents and an older sister . She attended Huzhou Xiaoaishan Elementary School Education Group Founding Elementary School and later Huzhou Maple Leaf Bilingual School, according to Namu Wikiโs profile . These education details have not been independently confirmed by the agency or a major news outlet, so they are best treated as reported background rather than verified official data.
Before training for K-pop, MERCI spent about eight years as a child model . That experience is one of the few pre-debut facts that appears consistently across Chinese, Korean, and Indonesian profile sources . It also explains why she has been noted for camera confidence that is unusual for a rookie-Namu Wikiโs profile points to her pre-debut activity as the reason she displays expressions โuncharacteristic of a rookieโ on stage .
Trainee and Pre-Debut Career
MERCIโs pre-debut career followed the A2O Rookies pathway. She was formally revealed as part of A2O Rookies, the agencyโs trainee development system, before the A2O LITE lineup was announced . In 2025, she appeared alongside XILI as a featured artist on A2O MAYโs digital single โB.B.B (Bigger Badder Better)โ under the unit name A2O LTG, and she also appeared in the music video .
That feature is a useful marker of her trainee profile: she was not a completely unknown entity at debut, but she also had not been introduced as a standalone public figure. The A2O Rookies system fed directly into the A2O LITE lineup, and MERCI was one of the trainees who transitioned from that system into the debut group.
K-Pop Career: A2O LITE Debut
A2O Entertainment officially introduced A2O LITEโs nine members on October 8, 2026 . The group held its debut showcase, โWelcome to Soulite,โ at KINTEX in Goyang on October 12, sharing the stage with the boy group A2O SOUL. The debut digital single โNEONโ was released on October 13 at 6 p.m. KST .
โNEONโ is a three-minute-twenty-eight-second track built around an a cappella section, a dance break, and high notes-structural choices that deliberately recall older K-pop conventions rather than the short, challenge-friendly format dominant in the mid-2020s . The song was produced by Yoo Young-jin, the long-time SM producer behind hits for H.O.T., BoA, TVXQ, Girlsโ Generation, SHINee, and aespa .
The commercial performance was immediate. โNEONโ reached No. 1 on Melonโs Top 100 chart on October 14 at 11 p.m. KST, 29 hours after release-reported as the fastest debut song to do so since the chart was restructured in 2021 . On October 20, 2026, A2O LITE won its first music-show trophy on The Show .
For MERCI specifically, the debut positioned her as a vocal and dance contributor rather than a narrowly specialized member. Namu Wikiโs analysis notes that she handled โquite difficult dance partsโ in verses and bridges and received praise from dancer and critic Ruda Kim for texture and control, while also being assigned the fourth-largest vocal portion in โNEONโ at approximately 19.6 seconds . She also performs a solo dance passage in the bridge near the end of the song . Those details support the โall-rounderโ framing without requiring the agency to have formally designated her as ACE.
Personality and MBTI
MERCIโs self-reported MBTI is ISTJ . The ISTJ type is commonly described as reserved, factual, and structured, and that description has been repeated in profile coverage rather than directly elaborated by MERCI in a long-form interview. No official agency profile has expanded on her personality type, so the ISTJ label should be read as her stated preference, not as a diagnostic claim.
What is more useful than the four letters is the behavioral evidence from early A2O LITE content. The encore-stage reactions after the groupโs first music-show win focused on stable live vocals and controlled stage presence, and Namu Wikiโs profile links that consistency to her pre-debut modeling and trainee experience . That is a more concrete personality-adjacent observation than extrapolating from MBTI alone.
Lifestyle Fact Check
Hobbies and Interests
MERCIโs trainee profile lists singing and dancing as her hobbies . She is also a BLACKPINK fan, a detail that appears in both German and Portuguese profile coverage . A fan-compiled Chinese guide additionally notes an interest in psychology and MBTI, a strong interest in makeup and styling, and a preference for high standards in outfit coordination . Those latter points come from a fan-maintained document rather than an official interview, so they are useful context but not agency-verified facts.
Diet and Food
No official diet plan or structured eating routine has been publicly confirmed. The only specific food preference in circulation is that she likes ice cream, which appears in a fan profile roundup . That is a single reported preference, not a diet.
Skincare and Beauty
No complete skincare routine, product list, or skin-type information has been publicly confirmed. She has not been announced as a beauty ambassador or campaign face for any brand.
Fashion and Brands
No official brand ambassadorship or campaign partnership has been announced for MERCI as of this writing. She has not appeared in a confirmed fashion-week capacity or a solo magazine cover tied to a brand deal. Any โfavorite brandโ claim at this stage would be speculation.
Tattoos
No tattoos have been publicly documented or discussed by MERCI. There is no verified tattoo information to report.
Pets
No pets have been publicly confirmed.
Dating
No relationship has been publicly confirmed by MERCI or A2O Entertainment. There is no verified dating information to report.
Net Worth
MERCIโs exact net worth is not publicly available. A2O LITEโs debut generated measurable commercial activity-a No. 1 Melon entry, a music-show win, and reported advertising interest in the group-but individual member earnings are not disclosed . Any specific figure would be an estimate, not a documented fact.
Interesting Facts
- Her stage name is French. MERCI means โthank youโ in French, and she is the only member of the A2O Rookies-turned-A2O LITE lineup to use a new stage name rather than a real-name-based stage name .
- She was a child model for about eight years before entering the A2O trainee system .
- She appeared on an A2O MAY song before debuting. MERCI and XILI featured on A2O MAYโs โB.B.B (Bigger Badder Better)โ in 2025 as part of A2O LTG .
- Her โNEONโ vocal share was the fourth-largest in the group, at roughly 19.6 seconds, and she handled a solo dance passage in the bridge .
- She was born in Huzhou, Zhejiang, the same province as fellow Chinese member XILI, though XILI is from Hangzhouโs Linโan District .
- She is the only member of A2O LITE from Huzhou. The other Chinese members are from different parts of Zhejiang and Fujian.
- Her reported blood type is AB, a detail that appears in multiple circulating profiles but has not been confirmed by A2O Entertainment .
- She was 15 years old at debut, making her part of a group whose average age was around 15-a point that drew both attention and criticism in early coverage .
- Her pre-debut camera experience shows up in encore-stage composure. Early reactions specifically noted stable live vocals after the groupโs first win .
- She is a BLACKPINK fan, a detail that has been repeated in profile coverage since debut .
- Her fan-documented nicknames include โSystemโ (็ณป็ป) and โMeilexiโ (็พไน่ฅฟ) , though these are fan-community terms rather than official nicknames .
- She is one of three Chinese members in a nine-member group that also includes Korean, Japanese, Thai, and Japanese-American members .
- A2O LITEโs debut single was produced by Yoo Young-jin, the producer behind some of SM Entertainmentโs defining hits, which places MERCIโs debut in a deliberate lineage of classic K-pop production .
- The groupโs debut showcase was held at KINTEX in Goyang on October 12, 2026, the day before the digital singleโs release .
Timeline
| Year | Milestone |
|---|---|
| 2011 | Born May 31 in Huzhou, Zhejiang, China |
| Pre-debut | Worked as a child model for approximately eight years |
| 2024โ2025 | Joined A2O Rookies; featured on A2O MAYโs โB.B.B (Bigger Badder Better)โ as part of A2O LTG |
| October 8, 2026 | A2O LITE members officially introduced |
| October 12, 2026 | Debut showcase โWelcome to Souliteโ at KINTEX, Goyang |
| October 13, 2026 | Debut digital single โNEONโ released |
| October 14, 2026 | โNEONโ reaches No. 1 on Melon Top 100, 29 hours after release |
| October 20, 2026 | A2O LITE wins first music-show trophy on The Show |
Achievements
| Year | Achievement | Detail | Result |
|---|---|---|---|
| 2026 | Melon Top 100 | โNEONโ reached No. 1 on October 14, 29 hours after release | No. 1 |
| 2026 | The Show | First music-show trophy, October 20 | Win |
| 2026 | Melon Top 100 consecutive run | โNEONโ held No. 1 for six consecutive days | 6 days |
Chart and music-show data sourced to Yonhap and Korea Herald reporting .
FAQs
How old is MERCI?
MERCI was born on May 31, 2011. As of 2026, she is 15 years old in international age.
When is MERCIโs birthday?
May 31.
What is MERCIโs real name?
Her real name is Ma Xitong (้ฉฌ่ฅฟๆก / ๋ง์ํ).
How tall is MERCI?
Circulating profiles list her height at 161.2 cm, but A2O Entertainment has not published an official height. Treat 161.2 cm as reported rather than confirmed .
What is MERCIโs MBTI?
She has been listed as ISTJ in profile coverage, and the type has been treated as self-reported .
What group is MERCI in?
She is a member of A2O LITE, a nine-member girl group under A2O Entertainment.
What agency manages MERCI?
A2O Entertainment, the label founded by Lee Soo-man.
What is MERCIโs position in A2O LITE?
A2O Entertainment has not confirmed a fixed official position. Chinese media and fan-facing profiles have described her as an ACE or all-rounder with lead vocal and lead dance capabilities .
Is MERCI a child model?
Yes. She worked as a child model for roughly eight years before joining the A2O trainee system .
Does MERCI have siblings?
Publicly circulating profiles list one older sister. This has not been confirmed by the agency .
What are MERCIโs hobbies?
Her trainee profile lists singing and dancing. She is also a BLACKPINK fan .
What does the stage name MERCI mean?
MERCI is French for โthank youโ .
Has MERCI released any solo music?
No. Her released discography consists of A2O LITEโs โNEONโ and her featured appearance on A2O MAYโs โB.B.B (Bigger Badder Better)โ .
Does MERCI have tattoos?
No tattoos have been publicly documented or discussed.
Is MERCI currently active?
Yes. A2O LITE is actively promoting โNEONโ as of October 2026, including music-show appearances and radio promotions .
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