In the winter of 2012, I went on a small journey alone with a delusional girl. She was unpretentious, spoke candidly, trusted her instincts, and truly enjoyed sex. As a professional AV actress, she turned her fantasies into reality, freely crossing the boundary between fantasy and reality. The greatest fantasy girl in history—Koto Mi Nagisa. She masturbates on trains and has a deeply masochistic side. A beautiful girl isn't just pure and innocent—she can also be a perverted fantasy addict. This is a documentary capturing the daily life of a girl wandering between fantasy and reality.