한 LATENCY

LATENCY (레이턴시) is a South Korean Girl Group that debuted in 2026. They consist of 4 members: Heeyeon, Seoryhn, Soobin and Yujin.

Built around a lineup of members who had each already spent years in the industry before coming together. Three of them :Jeewon, Haeun, and Semi; had previously debuted together in the girl group cignature, while Hyunjin was known for her work in LOONA and later Loossemble. The fifth member, Heeyeon, came from a different background entirely, having built a following as a guitarist and YouTuber under the name Fingerstylish, and had also worked as a guitar instructor for the band QWER.

The group's formation took shape after Jeewon, having gone solo, connected with a label representative preparing a band project; she in turn reached out to her former cignature colleagues and to Hyunjin, with whom she had trained, and Heeyeon was brought in to complete the lineup.

The name "Latency" was chosen to carry a specific meaning for the members: that their voices had been delayed but were finally being heard, and that moments which seemed like setbacks could become new beginnings. Rather than treating the transition from idol work to band performance as a simple rebranding, the members documented their pre-debut process through a web series that showed them starting from scratch and building familiarity with their instruments. They have acknowledged the skepticism directed at idol-trained performers entering the band space and framed their response as one of continued practice and proving themselves through live performance.

The group debuted in January 2026, and Hyunjin departed in May of the same year to focus on her health, leaving Latency as a four-member act. The members have described their longer-term goal as taking fuller creative control of their music, moving from partial involvement in songwriting toward telling their own stories through their work. However, in August 2026 Jeewon, Haeun and Semi finished their exclusive contract and left, leaving only Heeyeon in the group.

In November 2026 it was announced the addition of Soobin, Seoryhn and Yujin to recompose the group.