QWER () is a rock and anime song style girl band under Tamago Production. They stated that they were inspired by Japanese idol-themed manga such as Oshi no Ko, Bocchi the Rock! and musical groups such as Yoasobi. They debuted on October 18, 2023, with the single album Harmony from Discord.
The group's English name is derived from QWERTY, the first six keys on the top row of letters on Latin-script alphabet keyboards. Q, W, E, and R are also the primary keys used in online games such as League of Legends. The fandom's name ë°ÂìÂÂê² (Scuttle Crab) is also a reference to the multiplayer video game.
The group was formed through the "QWER Project", a YouTube series aiming to create a girl group composed of female online personalities. The project was launched by Tamago Production, a company started by the YouTuber and web content creator Kim Gye-ran in collaboration with 3Y Corporation. "QWER Project" followed the four members' incorporation into the group, their training, and their daily lives.
QWER's actual management and production were jointly handled by 3Y Corporation and Prism Filter Music Group. 3Y Corporation is in charge of management tasks such as content making, schedule management, and marketing, and Prism Filter Music Group was in charge of all music-related tasks, such as members' lessons and training, album work, and concerts. On October 29, 2025, the joint production contract between 3Y Corporation and Prism Filter Music Group was terminated. Accordingly, from that point on, the management and support of all QWER activities were taken over by Tamago Production and 3Y Corporation, of which Gye-ran Kim belongs. It was announced that Producer Lee Dong-hyeok, who was in charge of the existing music production of 'QWER', will continue to be in charge of producing 'QWER' regardless of the termination of the co-production contract.
Prior to their debut, each of the members already had established online careers. Chodan and Magenta were active streamers on Twitch, Hina was a popular content creator and cosplayer on TikTok with 4 million followers, and Siyeon is a former member of the Japanese idol group NMB48. At the project's launch on July 2, 2023, Magenta and Hina began formally learning their assigned instruments (bass and guitar) after joining the band. Magenta had about three months of self-taught experience on the bass. Meanwhile, Hina had a musical background in music production and applied music through her college entrance preparations, although she was new to the electric guitar at the time.
QWER made their debut on October 18, 2023, with the single album Harmony from Discord. Songs from the album were first performed during their debut showcase at Musinsa Garage in Seoul. The lead track "Discord" placed 5th on Spotify's "Viral 50 â Japan". It debuted at number 88 on YouTube Music's "Korea Weekly Top Songs" chart at the time of its release and remained on the chart for 21 weeks.
On March 18, 2024, the group announced their upcoming comeback. On the day of the announcement, QWER visited a military base and performed their unreleased single "T.B.H ()" from their upcoming EP. Their first EP Manito was released on April 1. Tracks from the EP were first performed in a showcase held at the Yes24 Live Hall in Seoul on the day of its release. On August 28, the group announced the release of their single "Fake Idol" on September 2. Their second EP Algorithm's Blossom was released on September 23, with the lead single "My Name Is Malguem", which gave the group their first music broadcast trophy since debut on October 9 on Show Champion.
On June 9, 2025, QWER released their third EP In a Million Noises, I'll Be Your Harmony, with the lead single "Dear". On July 18, the group announced that they would be embarking on their first world tour, Rockation, kicking off in Seoul from October 3 to 5. On October 6, QWER released a special single "Blue Whale", which is a remake of the hit song by South Korean rock band YB. It was later released as part of the special LP Beyond the Discord on October 13, along with five previously released singles.
On March 20, 2026, during the encore concert of QWER's Rockation world tour in Seoul, it was announced that their fourth EP Ceremony would be released on April 27.