Vin
빈 · 최서빈 (Choi Seo-bin)
Choi Seo-bin — Main Vocalist
November 27, 2004 Korean N/A N/A ISFP Sagittarius
Vin is the main vocalist of Badvillain, the seven-member South Korean girl group under BPM Entertainment. Born Choi Seo-bin on November 27, 2004, in Giheung-dong, Yongin, Gyeonggi-do, she is the younger sister of former Golden Child member Choi Bomin, giving her an early, up-close view of idol life before her own debut. Vin trained for roughly a year and five months, a comparatively short runway that speaks to her natural vocal ability, before being officially introduced as a Badvillain member on May 17, 2024. She debuted with the group on June 3, 2024, through the single album Overstep. Known for a calm, composed demeanor that can turn playful and funny around her members, Vin brings a grounded presence to the group's five-piece vocal line. Fans looking up Vin Badvillain profile, Vin MBTI, Vin Instagram, or Vin fun facts will find an ISFP idol who favors the color black, loves trips to the beach, and rallies fans under the hashtags #B.V and #VIN. As a main vocalist in a rising 5th generation K-pop girl group, Vin has promoted across every Badvillain era, from the group's record-setting debut to 2025's "Thriller," while the septet earned recognition including the Next Leader Award at the 2024 K-World Dream Awards. Like her groupmates, Vin has faced an uncertain 2026 following financial difficulties at parent company ONE HUNDRED, even as she remains a steady, well-loved presence among the VILLAIN-ON fandom.
Story
Biography
Who Is Vin of Badvillain?
Badvillain‘s Vin holds down the position of main vocalist in the seven-member
BPM Entertainment girl group. Born Choi Seo-bin on November 27, 2004, in Giheung-dong,
Giheung-gu, Yongin, Gyeonggi-do, South Korea, Vin grew up with an insider’s view of the K-pop industry as the
younger sister of former Golden Child member Choi Bomin.
Trainee Days and Debut with Badvillain
Vin trained for about one year and five months, dancing at MOVE Dance Studio to prepare for her debut. She was
officially revealed as a member of Badvillain on May 17, 2024, alongside Emma and YunSeo, ahead of the
group’s full debut. On June 3, 2024, Badvillain released their debut single album, Overstep,
led by the title track “Badvillain,” which helped the group notch the fastest 10-million-view debut music video
among 2024 girl groups.
Personality, Positions, and Fun Facts
Within Badvillain, Vin serves as a main vocalist. Her members describe her as calm on the surface but
surprisingly funny once she’s comfortable. She has cited black as her favorite color and going to the beach as one
of her favorite ways to relax. Fans of the ISFP idol rally around the hashtags #B.V and #VIN.
Discography and Group Activities
Vin has promoted through every Badvillain release to date, including “Hurricane” (2024), “Zoom” (2024), and
“Thriller” (2025). The group won the Next Leader Award at the 2024 K-World Dream Awards and earned a
Fans’ Choice nomination at the 2024 MAMA Awards.
Where Is Vin Now?
As BPM Entertainment’s parent company, ONE HUNDRED, faced serious financial and contractual troubles in 2026,
Badvillain’s group activities slowed to a halt. Vin, along with her groupmates, has kept a lower public profile
during this period as fans wait for updates on the group’s next steps.
Profile
Basic Information
| Stage Name | Vin |
| Full Birth Name | Choi Seo-bin (최서빈) |
| Date of Birth | November 27, 2004 |
| Birthplace | Giheung-dong, Giheung-gu, Yongin, Gyeonggi-do, South Korea |
| Hometown | Yongin, Gyeonggi-do, South Korea |
| Nationality | Korean |
| Height | N/A |
| Weight | N/A |
| Blood Type | N/A |
| Zodiac Sign | Sagittarius |
| MBTI | ISFP |
| Education | Trained approx. 1 year 5 months; danced at MOVE Dance Studio |
| Agency | BPM Entertainment |
| Debut | June 3, 2024 (Badvillain, "Overstep") |
| Languages | Korean |
| Nicknames | B.V, VIN |
| Hobbies | Going to the beach |
| Favorite Color | Black |
| Ideal Type | Not officially confirmed |
Membership
Groups & Positions
Badvillain
BPM Entertainment
Main Vocalist
June 2024 – Present
The Lineup
Group Members — BADVILLAIN
Emma
Main Dancer · Rapper
Chloe Young
Leader · Main Rapper · Dancer
HU'E
Main Vocalist
INA
Dancer · Rapper
YunSeo
Lead Vocalist · Rapper
Vin
Main Vocalist
This Idol
Kelly
Vocalist · Maknae
Journey
Career Timeline
2021
BPM Entertainment is founded
Big Planet Made Entertainment (BPM Entertainment) is established as a subsidiary under the ONE HUNDRED umbrella, later debuting VIVIZ before building its first in-house trainee group.
2024
Introduced as a BPM Entertainment trainee group
BPM Entertainment reveals plans to debut its first self-trained girl group, later confirmed as a seven-member lineup.
2024
Revealed as a BADVILLAIN member
Introduced to the public through BPM Entertainment's official teaser rollout ahead of the group's debut.
2024
Debut with "Overstep"
BADVILLAIN officially debuts on June 3, 2024 with the single album Overstep, led by the title track "Badvillain."
2024
Special single "Hurricane" released
BADVILLAIN releases the trap hip-hop track "Hurricane" on June 24, continuing debut promotions.
2024
"Zoom" comeback
BADVILLAIN returns with the single "Zoom" on November 19, expanding the group's bold performance identity.
2025
Fandom name "VILLAIN-ON" unveiled
On the group's first debut anniversary, BPM Entertainment reveals the official fandom name VILLAIN-ON (빌리온).
2025
"Thriller" comeback
BADVILLAIN releases the single "Thriller" on September 15, marking the group's most recent comeback.
2026
Agency financial crisis affects activities
Reports emerge of severe financial and contractual troubles at parent company ONE HUNDRED, leading BADVILLAIN to pause public promotional activities.
2004
Born in Yongin, Gyeonggi-do, South Korea
Choi Seo-bin is born in Giheung-dong, Giheung-gu, Yongin, Gyeonggi-do, South Korea, the younger sister of former Golden Child member Choi Bomin.
Music
Discography
🎧
Badvillain
Title Track
2024
🎧
Hurricane
Special Single
2024
🎧
Zoom
Single
2024
🎧
Thriller
Single
2025
Recognition
Awards & Achievements
Next Leader Award (with BADVILLAIN)
K-World Dream Awards
2024
Fans' Choice Nominee (with BADVILLAIN)
Mnet Asian Music Awards (MAMA)
2024
Did You Know?
Trivia & Fun Facts ✨
★
Born in Giheung-dong, Giheung-gu, Yongin, Gyeonggi-do, South Korea.
★
Birth name is Choi Seo-bin (최서빈).
★
Is the younger sister of former Golden Child member Choi Bomin.
★
Danced at MOVE Dance Studio before her debut.
★
Trained for approximately 1 year and 5 months prior to debuting.
★
Officially revealed as a Badvillain member on May 17, 2024.
★
Her MBTI type is ISFP.
★
Her zodiac sign is Sagittarius, and her Chinese zodiac sign is the Monkey.
★
Described by members as calm, though she can also be quite funny.
★
Her favorite color is black.
★
Loves going to the beach in her free time.
★
Her fan hashtags are #B.V and #VIN.
★
Has referred to her puppy as one of her most treasured companions.
★
Debuted with Badvillain on June 3, 2024, through the single album Overstep.
★
Promoted through Badvillain's "Hurricane," "Zoom," and "Thriller" eras.
★
Part of the Badvillain lineup that won the Next Leader Award at the 2024 K-World Dream Awards.
★
Serves as one of the group's main vocalists.
★
Shares a dorm with groupmates HU'E and Kelly, as confirmed during the group's 1st anniversary live.
★
Is part of a seven-member lineup that also includes Emma, Chloe Young, HU'E, INA, YunSeo, and Kelly.
★
Had one of the shorter trainee periods among Badvillain's members before debuting.
The Fandom
Fan Club & Fan Name 💜
Official Fan Name
VILLAIN-ON (빌리온 · "BILLION")
BADVILLAIN's official fandom name, revealed on June 3, 2025 to mark the group's first debut anniversary. The name blends the "V" from VILLAIN, an "O" shaped like a power symbol, and an "N" shaped like a lightning bolt, symbolizing the powerful start shared by BADVILLAIN and their fans.
Official Fan Color
To Be Announced
BPM Entertainment has not yet unveiled an official BADVILLAIN fandom color as of 2026.
Official Light Stick
TBA (Official Light Stick Not Yet Released)
As of 2026, BADVILLAIN and BPM Entertainment have not released an official group light stick.
Fan Community Platform
Daum Cafe & Naver TV
BADVILLAIN connects with VILLAIN-ON through the group's official Daum Fancafe, Naver TV channel, and social accounts run by BPM Entertainment.
Stay Connected
Social Media
Photos
Gallery 📷
