Adult women struggling to establish themselves as cosplayers remain stuck doing costumes at home and working in themed cafés. The underground circle Second-Generation Spit-Drinking Uncle investigates their hidden lives. This installment follows Rei, a former performer at an Ikebukuro cosplay café. Once the shy introvert entered the fan-event scene, group sex at private meetups awakened her extreme kinky side. Her involvement even extended to an event organizer and caused a major scandal, leaving her banned from fan events across Tokyo. This complete documentary pushes the notoriously filthy cosplayer to total personal ruin.