As a subculture trend, jk originated from Japanese kana, which means female high school students. After it was introduced into China, JK uniforms were used to describe clothes similar to those of Japanese female high school students. Japanese school uniforms are famous for their fashionable style, beautiful design and outstanding youthful and beautiful image of the wearer, and are deeply sought after by domestic teenagers. JK uniform enthusiasts carry out different forms of activities online and offline, and form a relatively fixed sub-cultural circle on this basis.