At twenty-two, Akari was a "Chika Idol"—an underground idol. Her life was a meticulously choreographed dance between the hyper-modern and the deeply traditional. By day, she worked at a traditional tea house in Yanaka, moving with the quiet grace of a girl from a different century. By night, she donned a glitter-streaked tutu and sang high-octane J-pop to a sea of glowing lightsticks.