Koda has been known for her "sexy" image. In 2003, she started a cleavage-baring trend when she appeared in advertisements wearing a metallic bra.[112] Her 2004 work with the anime movie Cutie Honey continued this image,[113] and in 2005, she began the "ero-kakkoi" or "ero-kawaii" trend in Japan and was partially responsible for making the wearing of lingerie in public more acceptable in Japan.[7][114] Koda's image has inspired other artists: Korean singer Ayumi Lee and American model-singer Leah Dizon, both known for their use of sexuality in the image, are inspired in part by Koda.[115] Singaporean newspaper The New Paper suggested that her sexy image was responsible for her sales—she outsold "reigning J-pop queen" Ayumi Hamasaki in 2006 and 2007.[116][117] In 2006, Koda began winning awards for being a new trendsetter in Japan, including the "Best Jeanist Award" on September 4, 2006,[118] and the title of "Nail Queen" for her nail art on November 21, 2006, by Japan Nail Expo.[119][120]
In 2006, when the popularity of Japanese singers was declining in Singapore due to the rising popularity of the Korean wave, Koda's sexy image garnered her popularity in the region and renewed interest in J-pop.[121] James Kang, marketing director for Warner Music in Asia, noted that Koda's sexy image is popular not only with men but also with women, even "Japanese aunties", because she uses her image to "make a feminist statement [...] She's constantly telling women to believe in themselves and do what they want to do".[115] In 2007, it was proposed that the term "ero-kakkoii" be added to the Japanese Encyclopedia of Contemporary Words. for complete info of her click herecomment :well i want to learn why lady gaga like her so much.i guess it comes to some of her unique styles.