Rei began her career at the age of as a junior idol and gravure model.
From Junior Idol to Rock Icon: The Tumultuous Journey of Rei Kuromiya
BRATS allowed Kuromiya to completely shed her manufactured "cute" past:
The Miss iD 2015 competition brought Kuromiya into contact with Rie Kaneko, the contest’s grand prize winner, and would soon lead to one of the most bizarre and viral sensations in Japanese pop music: . junior idol rei kuromiya
Kuromiya’s major turning point arrived in 2015 when she won the prestigious . Unlike traditional idol searches that demand standard uniformity and pristine obedience, Miss iD prides itself on celebrating eccentric, rebellious, and highly individualistic personalities.
[ Junior Idol Era ] (Robotic / Suppressed Emotions) │ ▼ [ Miss iD 2015 Win ] (Embracing Rebellion & Identity) │ ▼ [ Ladybaby & Global Viral Fame ] (The "Death Pop" Phenomenon)
When researching the term "junior idol," one is met with heavy legal and ethical debate. Rei Kuromiya's career stands in the middle of that debate. She serves as a complex figure who embodies both the problematic industry's flaws and the potential for an individual to grow beyond them—from an object of consumption to a self-aware creator and a musician in full control of her own artistic output. Rei began her career at the age of
The regarding minor models and underground idols.
Rei finished, breathless, her cheeks flushed — not from the dance, but from something warmer. Embarrassment? Joy? She couldn’t tell.
The group's debut single, "Nippon Manju," became an overnight viral sensation, amassing tens of millions of views on YouTube. The project contrasted heavy metal growls with kawaii pop melodies. Within this framework, Kuromiya served as a primary melodic vocalist, instantly recognizable by her rebellious, "cool girl" attitude that starkly contrasted the ultra-pure expectations of standard J-Pop idols. She serves as a complex figure who embodies
Parallel to her time in Ladybaby, Kuromiya had been nurturing a passion project: . Formed initially in 2011 with her older sister, Aya Kuromiya (on bass), BRATS was a stark departure from the manufactured idol aesthetic. It was a genuine alternative rock/punk band where Rei could fully unleash her gritty, powerful vocals.
Born on November 29, 2000, in Saitama, Japan, Rei Kuromiya entered the entertainment industry at an exceptionally early age.
The announcement in 2024 that BRATS would go on an indefinite hiatus marked another turning point. But from this ending came a powerful new beginning: .
Formed in 2015, LADYBABY was a trio that combined the heavy, aggressive style of "kawaii metal" with an outrageous visual contrast. The group consisted of Kuromiya and Kaneko, two young, conventionally cute female idols, alongside , a large, bearded Australian professional wrestler and performer who dressed in frilly, hyper-feminine costumes. The combination was deliberately absurd, but the music was earnest, and their debut single, “Nippon Manju” (ニッポン饅頭), became an international online hit upon its release in July 2015.