Girl bands and pop music permeate Japanese life. This film gets to the heart of a cultural phenomenon driven by an obsession with young female sexuality and internet popularity. Meet Rio - a bona fide Tokyo idol who takes us on her journey toward fame. Now meet her 'brothers' - a group of adult male superfans who devote their lives to following her, in the virtual world and in real life. Once considered to be on the fringes of society, the brothers who gave up salaried jobs to pursue an interest in female idol culture have since become mainstream via the internet, illuminating the growing disconnect between men and women in hypermodern societies. Tokyo Girls explores the Japanese pop music industry and its focus on traditional beauty ideals, confronting the nature of gender power dynamics at work. As the female idols become younger and younger, the film looks at the veil of internet fame and the new terms of engagement that are playing out in real life around the globe.