OWIS (; acronym for Only When I Sleep) is a South Korean virtual girl group formed by AMA. Formed in 2026, group consists of Serene, Haru, Soi, Summer, and Yuni. The group is the first to debut under the company AMA, established in 2026 by creative director Lee Hae-in. They debuted on March 23, 2026 with their extended play Museum and the lead single of the same name.
Name OWIS is an acronym for Only When I Sleep, reflecting the group's theme of being seen only in dreams. The concept "explores the growth of a girl group chasing its dreams across blurred boundaries between fantasy and reality", according to The Korea Herald. Their fandom is called Izz, derived from "stay in the ZZZ zone", referring to the moment when OWIS and their fans connect while they are asleep.
History In January 11, 2026, OWIS was unveiled during the 40th Golden Disc Awards with a teaser trailer, and official social media accounts were created after the ceremony with a planned goal of debuting in March. The trailer revealed their debut single, "Museum", and attracted attention from observers. The group's members, Serene, Haru, Summer, Soi, and Yuni, were revealed days later, confirming a five-member lineup for their debut. They were the first group to debut under AMA, a company founded in 2026 by creative director Lee Hae-in. In February 2026 the group released webtoon‑style teaser visuals on social media and confirmed their debut for March 23, 2026. During the next months, the group released a series of teaser materials for their debut EP, including the tracklist, a guidebook, tickets, posters, and concept photographs.
OWIS debuted on March 23, 2026, with the release of their extended play Museum, whose title track served as the lead single. They made their first appearance on Mnet's M Countdown on March 26 and subsequently started full-scale debut activities, promoting on other music shows, entertainment programs, and online content.
Members Although they are a virtual girl group, the real identities of OWIS are known and part of their concept. The members had all previously made Instagram posts where the text "Only When I Sleep" was visible on pink tickets, revealing their involvement as members of OWIS.
Serene () – leader (voiced by Lee Hae-in) Haru () (voiced by former I.B.I member Luri) Soi () (voiced by Lovelyz member Ryu Su-jeong) Summer () (voiced by producer and soloist Adora) Yuni () (voiced by former Nmixx member Jini)
Discography Extended plays + List of extended plays, showing selected details, selected chart positions, and sales figures Title Details Peak chart positions Sales KOR Museum Released: March 23, 2026 Labels: AMA Formats: CD, digital download, streaming 14 KOR: 18,852
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