n.SSign, pronounced en-sign, is a 10-member boy band formed through cable network Channel A's audition program "Youth Star" (2022).
The band consists of 10 members — Kazuta, Eddie, Doha, Junhyeok, Robin, Hanjun, Laurence, Huiwon, Sungyun and Hyun. Hyun is taking a break from group activities due to health issues.
n.SSign's debut album "BIRTH OF COSMO" saw good results in Korea and Japan. The album sold 207,227 copies in the first week of its release, making it the fifth most sold K-pop debut album in the first week of its release. The album also topped iTunes Japan's Top Albums chart upon its release.