Secret Number (OT6) 2025
Secret Number Members Profile & Facts You Need to Know (2025)
Secret number members have undergone a dramatic transformation in 2025, reshaping the identity of this popular K-pop girl group. Initially debuting on May 19, 2020, with their single album "Who Dis?", the group has weathered significant lineup changes while maintaining their presence in the competitive K-pop industry.
Following the departure of Léa, Dita, Minji, and Jinny after their contract expirations in April 2025, SECRET NUMBER welcomed four new talents to their ranks. Currently, the members of secret number include six performers: Soodam, Zuu, Ebin, Min C, Dinda, and Navi. This refreshed secret number profile marks a new chapter for the VINE Entertainment group, whose dedicated fandom "LOCKEY" continues to support them through these transitions. The name LOCKEY cleverly represents "people who become KEYs that open the locked appeal of SECRET NUMBER".
For fans curious about secret number members' nationalities, backgrounds, and personal stories, this comprehensive guide will explore everything you need to know about each member, including their roles, talents, and interesting facts that showcase their unique personalities.
Soodam
Soodam stands as one of the original members of Secret Number who remained with the group through their 2025 lineup changes. As a talented performer with a unique background in traditional dance, she brings distinctive qualities to the group's dynamic.
Soodam's stage name and real name
Born as Lee Soodam (이수담), she performs under the mononymous stage name Soodam (수담). Her name carries beautiful meaning in Korean, translating to "shining pond". Among fans and group members, she occasionally goes by the affectionate nickname "Dami", though she primarily identifies professionally with her given name.
Soodam's role in Secret Number
Within Secret Number's carefully balanced lineup, Soodam serves multiple critical roles. She holds positions as the group's Lead Dancer, Sub-Vocalist, Visual, and Center. Her presence in the center position during choreographies stems from her exceptional dance abilities and visual appeal, making her a focal point during performances.
Soodam officially debuted with Secret Number on May 19, 2020, as part of their first single album release "Who Dis?". Before joining the group, she underwent a training period of 1 year and 5 months, developing her skills under Vine Entertainment's guidance.
Soodam's nationality and background
Soodam is South Korean, born on November 9, 1999, making her 25 years old as of 2025. She hails from Seoul, South Korea, and has pursued extensive education in performing arts.
Her educational background demonstrates her commitment to dance and performance. Soodam graduated from both Sunhwa Arts Middle School and Sunhwa Arts High School. She furthered her education at the prestigious Ewha Womans University, majoring in Dance with a focus on Korean traditional dance.
Notably, Soodam's connection to traditional Korean arts runs deep. She studied traditional Korean dancing for approximately 10 years since childhood, which sparked her passion for performance. This specialized training significantly influenced her dance style and approach to movement. Additionally, she was once a member of the renowned traditional dance ensemble Little Angels Children's Folk Ballet of Korea, providing her with professional performance experience before joining Secret Number.
Fun facts about Soodam
Beyond her professional accomplishments, Soodam possesses many distinctive traits that endear her to fans:
She has distinctive physical features including eye smiles and dimples that fans recognize as her charming points
Soodam is the only child in her family
Her MBTI personality type is ISFP A/T
She has a pet cat
Despite understanding English, she cannot speak it fluently
Regarding her personal preferences:
Soodam enjoys activities like watching movies, shopping, and taking walks
She considers herself a non-picky eater who enjoys diverse foods including salmon, tripe, kimchi, and kimbap
She particularly loves mint chocolate flavor and pineapple pizza
Her favorite color is mint
She prefers iced coffee over hot coffee
Furthermore, Soodam's talents extend beyond performing—she's skilled at cooking and enjoys makeup. Her professional role model is Suzy, admiring how the performer successfully expanded her career into acting and other entertainment fields.
Standing at 5'5" (165 cm) tall, Soodam contributes to Secret Number's visual harmony while bringing her unique background in traditional Korean dance to their contemporary K-pop performances. Her blood type is A, and she's a Scorpio according to her November birth date.
Through her journey from traditional dance performer to K-pop idol, Soodam demonstrates versatility and dedication that continues to resonate with Secret Number's fandom.
Zuu
Joining Secret Number in 2021, Zuu represents one of the newer additions to the group's evolving lineup. As a talented vocalist with choreography skills, she has quickly established herself as an integral part of the group's identity.
Zuu's stage name and real name
Zuu performs under the stage name spelled as "주" in Korean. Her birth name is Ji Yeong-ju (지영주), maintaining a connection between her stage identity and given name. Unlike some K-pop idols who adopt completely different stage names, Zuu opted for a simplified version of her birth name, making it more memorable for fans worldwide.
Zuu's role in Secret Number
Within Secret Number, Zuu serves primarily as a vocalist, contributing her distinct tone to the group's musical repertoire. She was officially introduced as a new member on October 16, 2021, subsequently making her debut on October 27 of the same year with the single album "Fire Saturday".
Alongside her vocal responsibilities, Zuu holds the significant position of being the maknae (youngest member) of Secret Number. This role often carries special importance in K-pop groups, as the youngest member typically receives affection from both fans and fellow members.
Moreover, Zuu possesses notable talent in choreography, allowing her to contribute to the group's performance aspects beyond singing. In communication with fans, she has expressed dedication to her role, stating: "I'm very happy to meet our LOCKEY on the stage again! I'll work hard with my members during this promotion to make all LOCKEYs feel happy as well".
Zuu's nationality and background
Zuu is fully South Korean, born and raised in Seoul, South Korea. She entered the world on March 24, 2000, making her 25 years old as of 2025. Standing at 5'3" (160 cm) tall and weighing approximately 90 lbs (41 kg), she maintains the petite physique common among many K-pop idols.
Regarding her educational background, Zuu graduated from the School of Performing Arts, alternatively listed as Seoul Performing Arts High School in some sources. Prior to joining Secret Number, she built experience in performance through various training experiences. She was previously a student at W Dance Studio, where she created dance covers including one for TWICE's "Feel Special". Additionally, she studied at Art Ome Academy for 3 years and later attended Dong-Ah Broadcasting College after leaving her dance academy.
Fun facts about Zuu
Zuu possesses numerous interesting characteristics and preferences that showcase her personality:
Her blood type is B
Her zodiac sign is Aries
Her MBTI personality type is ESTP
She has a younger brother
People often compare her appearance to Namjoo from APINK
Her eyesight is .08 and apparently worsening
Regarding her personal preferences:
She loves mango and peach flavored drinks
Her favorite colors are pink, red, and black
She considers perfume and lip products essential items
She enjoys leopard print
Her representative animal is a guinea pig
In her leisure time, Zuu gravitates toward playing computer games and bowling. Musically, she admires performers like Taemin and Ariana Grande. Interestingly, she doesn't typically experience nervousness before performances, but rather when the songs actually begin. Another performance quirk: she occasionally removes her in-ear monitor briefly during concerts to better experience the venue's acoustics.
As a member who joined Secret Number after their initial debut, Zuu has been instrumental in helping shape the group's evolving identity throughout their transformations.
Navi
Completing Secret Number's 2025 revamped lineup, Navi rounds out the six-member ensemble as the final addition announced before their comeback. Her arrival marked the conclusion of the group's significant reformation after several original members departed.
Navi's stage name and real name
Navi performs under a stage name written as "나비" in Korean characters. Her birth name is Kim Na-hyun (김나현), revealing a thoughtful connection between her performance identity and given name. Interestingly, her stage name carries beautiful symbolism, as "navi" means "butterfly" in Korean, perhaps reflecting transformation and grace—fitting qualities for an artist joining a group in transition.
Navi's role in Secret Number
As the newest member of Secret Number, Navi was officially revealed to fans on August 16, 2025, becoming the final addition to complete the group's revitalized lineup. Merely three days after her introduction, she made her debut with Secret Number on August 19, 2025, through their digital single "New Number".
Currently, Navi operates under Vine Entertainment, the same company that has managed Secret Number since their inception. Being introduced just before their comeback single "Don't Touch", Navi had minimal preparation time in the public eye before stepping onto the stage as an official member.
Navi's nationality and background
Navi is fully South Korean, born on April 13, 2003, making her 22 years old as of 2025. Her zodiac sign is Aries, which typically suggests leadership qualities and dynamic energy. Her Chinese zodiac sign is the Goat, often associated with creativity and gentleness in traditional astrology.
Regarding her pre-debut activities, information remains limited as she was introduced to the public shortly before her official debut. Hence, her training period and previous performance experience have not been extensively documented in comparison to some other members.
Fun facts about Navi
Beyond her professional profile, several interesting characteristics define Navi's presence in Secret Number:
She belongs to the dedicated fandom known as "LOCKEY", which supports all Secret Number members
She joined the group in 2025 alongside three other new members (Ebin, Min C, and Dinda)
She appears to be proficient in both Korean and English languages
Her birth in April 2003 makes her one of the younger members of the current lineup
She began her active years in the entertainment industry in 2023, suggesting previous experience before joining Secret Number
As the final piece in Secret Number's 2025 reformation puzzle, Navi represents both the culmination of the group's transformation and the beginning of its new chapter. Her butterfly-inspired name symbolically connects to the group's metamorphosis, offering fans a fresh perspective on Secret Number's evolving identity.
Dinda
Representing Indonesia in the refreshed Secret Number lineup, Dinda brings international diversity to the K-pop girl group as one of four members added during their major 2025 reformation. Her addition maintains the group's multicultural identity following significant member departures.
Dinda's stage name and real name
Dinda performs under her first name, which appears as "딘다" in Korean characters. Her full birth name is Dinda Putri Maharani, although this has not been officially confirmed by Vine Entertainment. Unlike many K-pop idols who adopt entirely different stage names, Dinda maintains her given name for her professional career, creating continuity between her personal identity and public persona.
Dinda's role in Secret Number
Within Secret Number's carefully balanced lineup, Dinda primarily serves as a vocalist. Her soft, distinctive voice was immediately noticeable even in the group's teasers before her official debut, prompting curiosity among fans about her specific vocal contributions.
Dinda was officially revealed as a new Secret Number member on August 17, 2025, becoming part of the group's significant reformation. She subsequently made her debut just two days later on August 19, 2025, with the group's digital single variously referred to as "New Number" or "Don't Touch" in different sources.
Historically significant, Dinda holds the distinction of becoming the second Indonesian member in Secret Number after Dita Karang, maintaining the group's connection to Indonesia despite lineup changes.
Dinda's nationality and background
Dinda is Indonesian, expanding Secret Number's multinational composition. Born on August 22, 2003, she is 22 years old as of 2025. Her zodiac sign is Leo, with her Chinese zodiac sign being Goat.
Before joining Secret Number, Dinda built experience in entertainment through acting. Specifically, she appeared in the 2021 Indonesian television series "Abighea," portraying a character named Selena. This previous acting experience potentially contributes valuable on-camera presence to her current idol career.
Fun facts about Dinda
Beyond her professional credentials, several interesting characteristics define Dinda's personality:
She proudly identifies as an NCTzen (fan of the boy group NCT), with Mark being her bias (favorite member)
Her status as a K-pop fan before becoming an idol herself creates a relatable connection with Secret Number's fanbase
She joined Secret Number alongside three other new members (Ebin, Min C, and Navi) in 2025
As a Leo born in August, she likely exhibits traits commonly associated with this fire sign
She belongs to Secret Number's fandom called "LOCKEY"
Dinda's journey from Indonesian entertainment to K-pop idol demonstrates the increasingly global nature of the industry. Her transition from being a K-pop fan herself to standing on stage as an idol represents a dream realized—a narrative that undoubtedly resonates with many aspiring performers among Secret Number's international fanbase.
Through her addition to Secret Number, Dinda helps maintain the group's multinational identity while contributing her unique vocal color. As she continues to develop within the group, fans can look forward to discovering more about her talents, personality, and contributions to Secret Number's evolving musical direction.
Ebin
As the newest vocal addition to Secret Number in 2025, Ebin represents a fresh chapter in the group's evolution. Her recruitment coincided with the significant lineup changes that reshaped the K-pop ensemble into its current iteration.
Ebin's stage name and real name
Ebin performs under the stage name that is written as "에빈" in Korean. Her full birth name is Jeong Hye Bin (정혜빈), maintaining a connection between her stage identity and given name. The simplified version creates a memorable moniker for fans worldwide yet stays true to her birth name's essence.
Ebin's role in Secret Number
Within Secret Number's carefully balanced lineup, Ebin serves as a vocalist, contributing her unique tone to the group's musical palette. She was officially revealed as a new member on August 14, 2025, alongside three other newcomers who joined the refreshed lineup.
Ebin made her official debut with Secret Number on August 19, 2025, with their new digital single. Different sources refer to this comeback release as either "New Number" or "Don't Touch". This single marked a significant milestone in Secret Number's journey, essentially introducing four new talents simultaneously.
Prior to joining Secret Number, Ebin gained valuable experience in the entertainment industry. She was formerly a member of a duo trainee group called DEUX-G under VINE Entertainment, the same company that manages Secret Number. In addition, she participated in the talent competition show CAP-TEEN, which provided her with performance experience and public exposure. Her television appearances also included a show called Show King Night, further developing her abilities as a performer.
Ebin's nationality and background
Ebin is South Korean, born on January 28, 2004. As of 2025, she is 21 years old. Her zodiac sign is Aquarius, with her Chinese zodiac sign being Monkey.
Regarding her educational background, Ebin graduated from Geoje Okpo High School. In pursuit of her performance dreams, she attended both MuDoctor and PickPlanet academies, institutions that likely contributed to her development as a vocalist and performer.
Fun facts about Ebin
Beyond her professional accomplishments, Ebin possesses several distinctive characteristics and interests:
As a January-born individual under the Aquarius sign, she likely exhibits traits commonly associated with this air sign, such as innovation and independence
She joined Secret Number in 2025 along with Min C, Dinda, and Navi as part of the group's major lineup change
The fandom that supports her and all Secret Number members is known as LOCKEY
She was officially introduced to fans just five days before making her debut with the group
Ebin's journey from trainee to K-pop idol demonstrates the rapid transitions that can occur in the industry. In contrast to members who experienced years of training, her path to debut with an established group came relatively quickly after her previous endeavors.
As one of the newest faces in Secret Number, Ebin represents both the group's present identity and future potential. Her addition alongside other new members in 2025 helped ensure Secret Number's continuation after the departure of several original members, thereby preserving the group's legacy in the ever-evolving landscape of K-pop girl groups.
Min C
Min C brings a youthful energy to Secret Number as the group's youngest performer, infusing their 2025 lineup with her unique Korean-British heritage and rap skills. Her addition marks part of the group's significant renewal after several member departures.
Min C's stage name and real name
Min C performs under the stage name written as "민씨" in Korean characters. Her birth name is Min Seo (민서), revealing a connection between her stage and given names. The simplified moniker preserves her identity while creating a memorable presence for global fans.
Unlike some idols who adopt completely different stage names, Min C's performance identity remains closely tied to her birth name, possibly indicating her desire to maintain authenticity throughout her K-pop journey.
Min C's role in Secret Number
Within the current Secret Number lineup, Min C holds the position of Lead Rapper, contributing her rhythmic skills to the group's musical arrangements. Especially important is her designation as the group's Maknae (막내), a term referring to the youngest member—a position that carries special significance in K-pop group dynamics.
Min C officially joined Secret Number in 2025 as one of four new members brought in to reshape the group. She was revealed to fans on August 15, 2025, just days before making her official debut with the group on August 19, 2025, through their digital single "New Number". Some sources alternatively refer to this comeback release as "Don't Touch".
As a recent addition to the group, Min C represents Secret Number's newest chapter alongside fellow 2025 recruits. Her rap-focused role complements the vocal abilities of other members, creating a balanced performance dynamic within the refreshed lineup.
Min C's nationality and background
Min C possesses a mixed Korean-British nationality, making her one of the group's multicultural members. This dual heritage potentially enables her to connect with a broader international audience and bring diverse influences to Secret Number's artistic expression.
Born on April 21, 2006, Min C is 19 years old as of 2025. Her zodiac sign is Taurus, with her Chinese zodiac sign being Dog. These astrological designations might resonate with fans who follow such characteristics.
Regarding her educational background, Min C attended Flowing Academy, which presumably contributed to her performance training before joining Secret Number. Her current activities focus primarily on her role within the group, as she remains actively promoting with Secret Number.
Fun facts about Min C
Beyond her professional credentials, several interesting characteristics define Min C's personality and presence:
As one of four new members added in 2025, she represents part of Secret Number's major transformation
She is proficient in both English and Korean languages, likely due to her dual heritage
Her blood type is not publicly disclosed yet
Her MBTI personality type remains unpublished
She shares her birthday (April 21) with several notable figures in entertainment
Min C's activities with Secret Number are supported by the group's dedicated fandom known as LOCKEY, whose name cleverly represents "people who become KEYs that open the locked appeal of SECRET NUMBER."
Standing at the beginning of her K-pop career, Min C's journey with Secret Number has just begun. As the group's youngest member with a unique cultural background, she brings fresh perspectives that may influence Secret Number's artistic direction moving forward. Her rapid transition from trainee to debuted idol showcases the dynamic nature of K-pop careers, where new talents can quickly ascend to prominence through established groups seeking renewal.
FAQS
Fans frequently seek answers about Secret Number's identity, music, and future plans. Below are the most commonly asked questions about this dynamic K-pop group, offering insights beyond individual member profiles.
What is the official fandom name for SECRET NUMBER and what does it mean?
The official fandom name is LOCKEY (락키), which combines "LOCK+KEY." This cleverly represents "people who become KEYs that open the locked appeal of SECRET NUMBER". The name was chosen through fan recommendations and voting, making it a collaborative decision between the group and their supporters.
How would SECRET NUMBER describe themselves to new fans?
When asked to introduce themselves to newcomers, Secret Number emphasizes their multicultural background and unique musical style. The group originally explained their name's meaning by stating: "Everyone has a secret number [for a password or PIN code], which is usually a birthday, anniversary, or some other special number. We want to hold such special meaning in public".
What message does SECRET NUMBER hope to convey through their music?
In describing their single "DOXA," the members explained it represents "a poisonous love that is an endless cycle of breaking up and making up". Beyond romantic themes, they aim to create music that reminds listeners "you're not alone" regardless of life circumstances.
What are some memorable moments from their recordings?
Members recall shooting music videos in challenging conditions, with Jinny sharing: "It was actually extremely cold while we were shooting the music video, so I remember us trembling and running around because it was so cold having to wear summer outfits during the shoot".
Which artists would SECRET NUMBER like to collaborate with?
Members have expressed interest in collaborating with both Eastern and Western artists. Individually, some members admire performers like Taemin and Ariana Grande as musical inspirations.
How has SECRET NUMBER grown since their debut?
Reflecting on their journey, original member Dita noted: "Sometimes it still feels so surreal. Time seems to go by so fast, and yet here we are on our third year together. I am so thankful for all the love and support that we've been receiving". Soodam added that three years "have gone by in a flash," making her "look forward more to how our time will pass in the future".
Where would SECRET NUMBER like to perform for their fans?
The group has expressed desires to perform worldwide for their international fanbase. This global ambition reflects their multinational composition and the widespread appeal of K-pop.
What does K-pop mean to SECRET NUMBER?
For SECRET NUMBER members, K-pop represents more than just a music genre—it's a platform for cultural exchange and connection with fans worldwide. Their diverse backgrounds contribute to this cross-cultural approach to music and performance.
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