Kuromiya began her career at age eight, entering the controversial industry. These young performers are often marketed through "u-15" (under 15) gravure modeling, which has faced significant criticism for the sexualization of minors.
: In later interviews, Kuromiya admitted that the critical and sometimes predatory way people viewed her past made her "look down on herself". japan junior idol rei kuromiya patched
Following her exit from the mainstream idol scene, Kuromiya focused on BRATS , an all-female rock band she formed with her sister, Aya. Kuromiya began her career at age eight, entering