OF’CORE Members Profile 2026: Ages, Birthdays & Interesting Facts
Who Is OF’CORE?
OF’CORE (오브코어) is a six-member multinational girl group under Na Entertainment. It is the rebranded continuation of NWH:I (뉴이), a group that debuted on October 24, 2025, paused activities on June 30, 2026, and returned under a new name in September 2026. The current lineup is Sori, Nabi, Mariam, Han Jinhee, Rina, and Lee Yena. As of October 22, 2026, no music has been released under the OF’CORE name.
The group’s name has not been given an official meaning by the agency. NWH:I stood for “New World High Teen Idol,” a phrase used in the group’s original promotional material.
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Quick Info
| Category | Detail |
|---|---|
| Group name | OF’CORE (오브코어) |
| Former name | NWH:I / NWHI (뉴이) |
| Agency | Na Entertainment |
| Debut (as NWH:I) | October 24, 2025 |
| Debut single | “Like a Flame” |
| Second single | “Siren Call” (January 26, 2026) |
| Hiatus | June 30, 2026 |
| Rebrand announced | September 3, 2026 |
| New name effective | September 9, 2026 |
| Members | Sori, Nabi, Mariam, Han Jinhee, Rina, Lee Yena |
| Former members | Nina, Via, Seungjoo, Alice, Nicole, Vanesya |
| Fandom name | NEW:S (fan-database claim; not agency-confirmed) |
| Music released as OF’CORE | None confirmed |
Table of Contents
From NWH:I to OF’CORE: A Timeline
NWH:I was announced in January 2025 as a multinational project under Na Entertainment, with a planned Y2K and high-teen concept. The debut lineup shifted several times before settling at seven members. The group ultimately debuted on October 24, 2025, with the digital single “Like a Flame,” a retro-leaning Y2K and girl-crush track whose message, according to Korean press coverage at the time, was support for one’s own dreams “burning like a flame”.
A second digital single, “Siren Call,” followed on January 26, 2026. Both releases are distributed through Vlending and credited to Na Entertainment.
On June 30, 2026, Na Entertainment announced that group activities would be suspended and that members would focus on individual work. Reporting from Indonesian outlets IDN Times and Jawapos described the hiatus as open-ended, with no future group schedule confirmed at that point.
The rebrand was announced on September 3, 2026. Na Entertainment confirmed that NWH:I would continue as OF’CORE following the departures of Nina, Via, Seungjoo, Alice, Nicole, and Vanesya from the label. The new name took effect September 9, and member reveals ran from September 10 to September 15, 2026.
Current Members: What Is Verified
No official member profile page with heights, positions, and MBTI types has been published by Na Entertainment. The table below separates agency/platform-confirmed information from fan-database claims.
| Member | Birthday | Age (Oct 2026) | Nationality | Verification status |
|---|---|---|---|---|
| Sori | October 5, 2007 | 19 | Russian | Birthday and nationality listed in fan databases; career history partially confirmed by platform releases |
| Nabi | March 28, 2001 | 25 | Chinese | Fan-database listing only |
| Mariam | December 18, 2003 | 22 | German (Persian-German) | Birthday and nationality consistently reported across databases; the only member retained from NWH:I |
| Han Jinhee | December 19, 2000 or 2001 | 25 or 24 | South Korean | Birth year disputed between sources |
| Rina | September 12, 2002 | 24 | Japanese | Real name reported as Chiba Marina (千葉満里奈) |
| Lee Yena | February 23 or May 23, 2005 | 21 | Korean-Russian | Birthday disputed between sources |
Sori is the youngest member and the only one with a pre-existing solo discography. Under the name FISORI, she released the digital single “Kiss Woman” on May 5, 2023, and previously belonged to the cover groups Hot Generation and Lunar Plexus, according to fan-maintained records. She was revealed as an OF’CORE member on September 15, 2026.
Nabi is the oldest member by birth date. Fan databases list her MBTI as INFP and her birthplace as China. No pre-debut career information has been confirmed.
Mariam (Maryam Kheirandish) is the group’s continuity figure. She was part of NWH:I and also debuted in Na Entertainment’s co-ed project group DNA, which released “Change the World” on September 3, 2025. Fan databases list her height as 163 cm and her MBTI as ENFJ; neither has been published by the agency.
Han Jinhee has the most documented pre-debut career of the Korean members. She debuted as a main vocalist in the girl group Astell on July 9, 2024, later joined the DNA lineup in July 2026, and was revealed as an OF’CORE member on September 13, 2026. Her birth year is listed as 2000 in some databases and 2001 in others; the discrepancy has not been resolved by an official source.
Rina is a Japanese member whose real name is reported as Chiba Marina. She also came through Astell and DNA before being revealed for OF’CORE on September 14, 2026.
Lee Yena is Korean-Russian and was associated with NWH:I before its debut, then left the lineup before the group’s October 2025 launch. She was revealed as an OF’CORE member on September 15, 2026. Her birthday is listed as either February 23 or May 23, 2005, depending on the database.
Former Members
Six members left the NWH:I lineup before or during the rebrand:
| Member | Nationality | Notes |
|---|---|---|
| Nina | Filipino | Original NWH:I member |
| Via | Indonesian | Former Beauty Box member; pre-debut NWH:I member |
| Seungjoo | South Korean | Original NWH:I member |
| Alice | Japanese | Original NWH:I member; also in DNA |
| Nicole | Singaporean | Original NWH:I member; also in DNA |
| Vanesya | Indonesian | Original NWH:I member; youngest of the debut lineup |
Departure from the label was confirmed through Na Entertainment’s September 2026 rebrand announcement as reported by IDN Times and Generasia.
Discography: Two Singles, No Full Release
OF’CORE has no releases under its own name. The group’s recorded catalog consists of the two NWH:I digital singles:
- “Like a Flame” — October 24, 2025. Lyrics by Jo Hojin (Futurecreative). Y2K and girl-crush concept.
- “Siren Call” — January 26, 2026. Two tracks including an instrumental.
Both are credited to Na Entertainment with distribution by Vlending. Neither release has a documented Circle Chart or Hanteo entry, and no music show win is recorded for either song. During the NWH:I promotion period, the group did perform on Korean music shows, including Show Champion and Show! Music Core, according to fan-tracked performance records.
Awards and Chart Performance: The Honest Record
There is no verified award nomination, award win, or chart placement for OF’CORE or NWH:I. This is not an omission — it reflects the group’s scale and the short window between debut and hiatus.
| Category | Result | Source status |
|---|---|---|
| Major Korean award nominations | None documented | No announcement from MAMA, Golden Disc, Seoul Music Awards, or Circle Chart Music Awards |
| Music show wins | 0 | Fan-tracked records show no wins |
| Circle Album Chart entries | None documented | No Circle Chart listing found |
| Hanteo Chart entries | None documented | No Hanteo listing found |
| Melon Top 100 entries | None documented | No verified entry |
| First music show performance | October 29, 2025 (Show Champion) | Fan-tracked |
Any claim that OF’CORE or NWH:I has won an award or charted on a major Korean chart should be treated as unverified unless a primary source is provided.
Timeline
| Date | Milestone |
|---|---|
| January 1, 2025 | Na Entertainment opens NWH:I social accounts |
| September 3, 2025 | Project group DNA, including Mariam, debuts |
| October 24, 2025 | NWH:I debuts with “Like a Flame” |
| January 26, 2026 | Second digital single “Siren Call” |
| June 30, 2026 | Group activities suspended indefinitely |
| September 3, 2026 | Rebrand to OF’CORE announced |
| September 9, 2026 | OF’CORE name takes effect |
| September 10–15, 2026 | Six members revealed |
| October 22, 2026 | No OF’CORE debut release confirmed |
Awards and Achievements Table
| Year | Award | Category | Result |
|---|---|---|---|
| 2025–2026 | MAMA Awards | Any category | No nomination documented |
| 2025–2026 | Golden Disc Awards | Any category | No nomination documented |
| 2025–2026 | Seoul Music Awards | Any category | No nomination documented |
| 2025–2026 | Circle Chart Music Awards | Any category | No nomination documented |
| 2025–2026 | Music show wins | Any | 0 |
Critical Reception
No major Korean music critic or outlet has published a review of “Like a Flame” or “Siren Call.” Coverage of the group has been limited to debut announcements, the hiatus, and the rebrand, mostly from smaller Korean outlets such as Beyond Post, Discovery News, and Newsisports, plus Indonesian and Filipino K-pop media.
This matters for readers searching for a “review”: there is no established critical consensus because the group has not yet received sustained critical attention. The absence of reviews is a fact about the group’s industry position, not a judgment on its music.
International Reception
The group’s most distinctive feature is its lineup. NWH:I debuted with seven members from six countries — the Philippines, Indonesia, South Korea, Japan, Singapore, and Germany. Na Entertainment has described the project as leveraging each member’s language and cultural background to target a global audience, and Korean regional press has referred to the agency’s acts collectively as a “12-country multinational” roster.
That framing has produced measurable coverage in Southeast Asian media, particularly in Indonesia, where two original members came from. The group also performed at a 2025 Indonesian diaspora gala dinner in Seoul, according to Newsisports.
Whether that international framing translates into fandom outside Korea is not yet measurable. The group has no documented tour, no fandom membership data, and no major overseas chart entry.
Why the Group Attracts Attention
Three concrete factors explain the interest in OF’CORE despite its small profile:
- The rebrand is unusually complete. A group debuted, paused after eight months, lost six of seven members, and returned with a new name and a mostly new lineup — all within a year. That is a rare sequence even in small-agency K-pop.
- The members have pre-existing careers. Jinhee and Rina came from Astell, Mariam came from DNA, and Sori had a solo release under the name FISORI. These are verifiable credits, not fan claims.
- The lineup is genuinely multinational. Russian, Chinese, German, Japanese, Korean, and Korean-Russian members in one group is a notable composition, and it is the core of the agency’s promotional strategy.
What Is Verified, Reported, and Unconfirmed
Verified by a primary source or platform:
- Debut date (October 24, 2025) and single title
- Second single and release date
- Hiatus announcement date
- Rebrand announcement and effective date
- Current six-member lineup and the six departures
- Mariam’s participation in DNA and its September 3, 2025 debut
- Jinhee and Rina’s prior Astell activity
Reported by credible secondary sources:
- The group’s Y2K and high-teen concept
- Na Entertainment’s “12-country” roster description
- Individual member careers in cover groups and project groups
Not publicly confirmed:
- Official heights for any member
- Official positions (leader, main vocal, main dancer, etc.)
- Official MBTI types
- The fandom name NEW:S
- Any debut date for OF’CORE as a new act
- Any endorsement or ambassador role
Note that fan databases sometimes conflate people with similar stage names. At least one major profile aggregator lists a different “Sori” and a different “Rina” under the OF’CORE tag, which is a known error pattern for nugu groups. Cross-check birthdays against more than one source before relying on them.
Lifestyle Fact Check
There is no verified lifestyle information for OF’CORE members. No member has published a workout routine, diet plan, skincare routine, or home tour through official content. No tattoo, pet, car, watch, or phone model has been confirmed by the members or the agency.
- Heights: Only Mariam has a widely listed height (163 cm), and it comes from fan databases, not the agency.
- MBTI: Fan databases list Mariam as ENFJ, Nabi as INFP, and Jinhee as INFJ-T. None of these has been confirmed in an official profile.
- Brands and endorsements: Korean regional press reported in September 2026 that Na Entertainment’s four teams, including NWH:I/OF’CORE, were scheduled for a Samsung Galaxy Tab model contract through a third-party partnership. This is a company-level report, not a confirmed individual endorsement.
- Dating: No relationship has been publicly confirmed for any member.
- Net worth: No reliable financial information exists for any member. Exact net worth is not publicly available.
FAQs
How old are the OF’CORE members?
As of October 2026: Sori is 19, Nabi is 25, Mariam is 22, Han Jinhee is 24 or 25 (birth year disputed), Rina is 24, and Lee Yena is 21.
When is Mariam’s birthday?
December 18, 2003.
Is OF’CORE a new group or a rebrand?
It is a rebrand. OF’CORE is the continuation of NWH:I, which debuted in October 2025 and paused in June 2026.
Who left NWH:I?
Nina, Via, Seungjoo, Alice, Nicole, and Vanesya left the label before the rebrand.
Has OF’CORE debuted under its new name?
No. As of October 22, 2026, no music has been released under the OF’CORE name.
What is OF’CORE’s fandom name?
Fan databases list NEW:S, but the agency has not confirmed it in an official profile.
How tall are OF’CORE members?
No official heights have been published. Mariam is listed at 163 cm on fan databases.
What is OF’CORE’s MBTI?
There is no group MBTI. Individual types circulating online are fan-database entries, not official statements.
What group was Han Jinhee in before?
She debuted in Astell in July 2024 and later joined the DNA lineup.
Did Sori debut solo before OF’CORE?
Yes. Under the name FISORI, she released “Kiss Woman” on May 5, 2023.
What songs has OF’CORE released?
None as OF’CORE. As NWH:I, the group released “Like a Flame” and “Siren Call.”
Has OF’CORE won any awards?
No award nomination or win is documented.
Where is OF’CORE from?
The group is based in South Korea under Na Entertainment, with members from Russia, China, Germany, Japan, and Korea.
Who is the oldest member?
Nabi, born March 28, 2001.
Who is the youngest member?
Sori, born October 5, 2007.
Fact-check note: Birth years for Han Jinhee and birthdays for Lee Yena differ between reference databases and could not be resolved against an official profile. Both variants are disclosed in the article rather than presented as settled fact.
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