STMLT (Stemireits)
Biography and full discography of STMLT (Stemireits), with a page for every album, on METAL BOOST.
Biography
STMLT (Stemireits) Biography
Profile
Active since June 2022 / Tokyo, Japan / Hard Rock, Alternative Metal, Metalcore, Japanese Rock
Official sources verified: STMLT Official X / STMLT Official Shop (checked 2026-07-11).
Biography
STMLT, known in Japanese as Stemireits, is a Japanese all-female rock band and video-creator group that began activity in June 2022. The members were assembled through an audition and built an audience with frequent entertainment and challenge videos, while their original music took a very different direction: heavy riffs, large choruses and live arrangements drawing from hard rock, loud rock, alternative metal and metalcore. The contrast between an accessible public personality and an aggressive stage sound became the group’s defining feature. Its fans are known as “Volts.”
The first original song, “Shigeki,” arrived in November 2022, followed by “Tsuikyu,” “Inazuma,” “dream walker” and “TWILIGHT.” The six-track debut EP STMLT was released on September 20, 2023. The group’s first concert sold out immediately, and in 2024 it launched the STMLT STORMBREAKER JAPAN TOUR, beginning at Kawasaki CLUB CITTA' and expanding through a national run that eventually led to KT Zepp Yokohama. Singles including “EVOL AI” and “Antimental” broadened the sound without abandoning its heavy core.
After lineup changes and a period of inactivity, STMLT rebuilt around guitarist Kirara, bassist Akira, drummer Sakity, harsh-vocal and rap specialist Kanachi, and lead vocalist Mofchan. Kanachi and Sakity joined during the transition period, while Mofchan was announced as the new lead vocalist in January 2026. The current five-member lineup combines melodic lead singing with screams, rap, chorus work and a rhythm section designed for direct audience participation.
Released in May 2026, “SiLENT KiLLER” was written by Kanachi and marked Mofchan’s first recorded vocal appearance with the band. By connecting the reach of its video activity with an increasingly focused live identity and a contrasting twin-vocal setup, STMLT continues to develop the distinctive space it created between girls-band culture, loud rock and creator-led entertainment.
The Distinctive Position of "Girls Band × Video Creator"
What characterizes STMLT is that it holds two faces at once: a "girls band" and a "video-creator group." Members assembled through an audition build an accessible public personality by continuously posting everyday-project and challenge videos, while their music sounds heavy riffs and large choruses crossing hard rock, loud rock, alternative metal and metalcore. This gap between "a bright, approachable real face" and "an aggressive stage sound" is STMLT's greatest appeal.
Connecting the reach built through video activity to the music, and leading it into audience-participation live shows that involve the fans (known as "Volts"), this method embodies a form of band native to the social-media and video era. The twin-vocal contrast between Kanachi, who handles death voice, rap and chorus, and lead vocalist Mofchan pushes the new-formation STMLT into a musically stronger presence.
Detailed Member Profiles
Mofchan (Lead Vocal) — A lead vocalist who joined in January 2026. With melodic singing she carries the vocal center of the new formation, pairing with Kanachi's screams.
Kanachi (Scream / Rap / Chorus) — A versatile member handling death voice, rap and chorus. She embodies the band's heavy side with aggressive expression and also writes lyrics.
Kirara (Guitar) — STMLT's guitarist. She builds the band's metallic foundation with heavy riffs.
Akira (Bass) — A bassist supporting the band's low end.
Sakity (Drums) — A drummer who joined during the transition period. She drives the songs with powerful drumming.
Discography
| Year | Title | Type |
|---|---|---|
| 2022- | Shigeki / Tsuikyu / Inazuma / dream walker / TWILIGHT | Early songs |
| 2023 | STMLT | Debut EP (September 20 / six tracks) |
| 2025-2026 | ZENTSUPPA / Jinka / SiLENT KiLLER | New-formation songs |
Conclusion
STMLT is a group with the distinctive position of "girls band × video creator," launched in 2022. Armed with the gap between accessible video activity and an aggressive sound crossing hard rock and metalcore, it broadened its support through the debut EP STMLT and a national headline tour. Overcoming line-up changes and a period of inactivity, and fully restarting as a five-member unit in 2026 with the addition of Mofchan, STMLT continues to walk its unique path while connecting the reach of the video era with musical intensity.
Trivia
What the name means is stated in one line on the band's official YouTube channel: STMLT is stimulate. The same block carries their stated aim — to take the world as a girls band crossed with a YouTube act — and the date they started posting videos, 4 June 2022. Their first original song, as it happens, was titled "Shigeki": stimulus.
The band's official X profile packs its self-description and its goal into one line: a girl-group YouTube act crossed with a girls band, videos at seven in the evening, aiming for the gold plaque — the award YouTube sends at a million subscribers. The same line records what their fans are called: Volts.
The lyrics to "Shigeki," their first original song, were written by Ecchan — the YouTuber who was producing the band at the time. Per the official video's description, kabukin536 composed it, Jun Miyajima arranged and mixed it, and Tora Amano directed the clip. It went up on 12 November 2022 and later opened the first EP.
STMLT began in June 2022. Assembled by audition, the five members posted a video every day while running a band alongside it — a YouTube channel and a group that plays, driven in parallel. By October 2023, about fifteen months in, the channel had passed 230,000 subscribers.
The order was the reverse of a normal band's. When they first got into a rehearsal room — after the audition results were out and the line-up announced — not everyone was an experienced player, and those who were had been away from it for a while. Looking back, guitarist Kirara says that in pure skill terms it was rough, and that even so it fitted. The first job was simply getting used to shooting, editing and posting a video every day; the first show, they had decided, would wait until the performance was actually worth watching.
Their first show came in July 2023, billed as STMLT 1st Live: 100,000 Volts. Tickets sold out the moment they went on sale. The word that gives the band's fans their name — volt — was there in the title of the very first one.
The first EP, STMLT, released on 20 September 2023, holds six tracks in this order: "Shigeki," "Tsuikyu," "Inazuma," "TWILIGHT," "dream walker" and "AnimaZ." They named the record after the band.
The tour's opening night had a prologue. The day before Kawasaki, the band played EMERGE FEST. 2024, a festival in Taiwan — the first time they had performed outside Japan. They landed back in Japan and reached the hotel at one in the morning on the day of the show, and slept about three hours. Before that the dress rehearsal had run to three or four in the morning; as Yukippe puts it, it was not two days but something more like four compressed into one, with almost no sleep in them. In Taiwan the crowd had been thin at the start and filled in once they began — enough, she says, to convince them that what they played worked in another country, and they carried that into the opening night.
Current Members
Current lineup verified from the official artist source on 2026-07-11. Official profile
Albums
STMLT’s six-track debut EP, joining the group’s accessible video-creator identity with heavy loud-rock and metal arrangements built for the live stage.