: Unlike her idol projects, BRATS allowed Kuromiya more creative freedom as a vocalist and guitarist.
Alongside Ladybeard and Rie Kaneko, Kuromiya was a founding member of this cross-dressing/idol fusion group. The group blended heavy metal with bubblegum pop, known as "kawaii-metal" or "harajuku-metal." Kuromiya’s role was crucial, providing a more serious, alternative edge to the group's chaotic, high-energy image.
In 2019, Kuromiya released her debut solo single, which peaked at number 3 on the Japanese Singles Chart. The song's music video, featuring Kuromiya performing intricate dance routines, garnered millions of views on YouTube and cemented her status as a rising star in the junior idol scene.
During this period, the type of work was quite specific. Her schedule was rigorous: on weekends, she would gather at her agency near 7 a.m. for photoshoots that lasted until 5 p.m.. She has described the work as simple and fun—things like jumping into pools, wearing gym clothes, playing with hula hoops, and being treated to shaved ice and ice cream. At the time, she didn't feel pressure or fully understand the implications of being photographed, viewing it as a traveling adventure. junior idol rei kuromiya work
: Unlike mainstream musical idols, their content leans heavily into "gravure" modeling—posing in school uniforms, swimwear, or casual clothing.
Kuromiya began modeling in her single-digit years. Under various talent agencies, she released several digital photo collections and image DVDs, such as the Innocence series. These releases targeted the collectors' market, featuring standard genre tropes like school swimsuits ( sukumi ) and traditional summer yukatas. The Psychological Toll
Throughout her career, Rei Kuromiya has demonstrated her talent, dedication, and passion for the entertainment industry. As a junior idol, she has inspired countless young fans with her adorable image and charming personality. Her transition to more mature roles has showcased her growth as an actress and her ability to adapt to new challenges. : Unlike her idol projects, BRATS allowed Kuromiya
Rei Kuromiya’s career is frequently discussed not only for her music but also for her journey of breaking free from the constraints of the junior idol and traditional idol systems.
In 2017, she released her 1st official photobook, titled "0 rei", which aimed to "reset" her image and show a more mature and artistic side beyond her idol days.
The following themes highlight why her work is a frequent subject of analysis regarding the Japanese idol system: 1. The "Robot" Narrative and Stolen Childhood In 2019, Kuromiya released her debut solo single,
: She began modeling for brands like Clearstone and quickly became a prominent figure in the U-15 (under 15) gravure scene.
The trio’s debut single, "Nippon Manju," combined heavy metal breakdown riffs with J-pop melodies and a chaotic music video celebrating Japanese culture. The video gained tens of millions of views on YouTube, turning Kuromiya into an international internet celebrity overnight.
During this period, Rei also worked as the voice and character for the virtual idol Hoshino Rei ("Star No Zero"), releasing digital pop singles like "LOVE RanRan" as part of the "Trillion Starlights" project, showcasing her versatility beyond her rock persona.