The Japanese attitude toward the handicapped has always been to keep them hidden away, as such YUMA’ s lifelong affliction with debilitating cerebral palsy has kept her oppressively locked up under her overbearing mother's care. Unable to even dress herself, Yuma is essentially housebound but has found a niche ghost -writing comic books for her so-called best friend SAYAKA, who takes all the public credit and most of the money. Need ing more from life, Yuma answer s a want ad t o create erotic manga but is told by the sympath etic editor to come back once she has some actual sexual experience. Yuma’ s first encounter with a male prostitute at a “ Love Hotel” ends in disaster, but it is there that she meets MAI, a sex worker specializing in caring for the handicapped. From visiting sex shops to drag bars to binge drinking, Mai, along with her driver TOSHIYA, takes Yuma under her wing and shows her just how exciting Tokyo nightlife can be. Yuma is delighted with her new life and begins to feel like a normal girl at last, but she catches her mother’ s wrath when the truth of her sexual exploration comes out.
This self-discovery takes an unexpected twist when Yuma learns of a family secret that takes her on a road trip to confront her painful, but ultimately liberating truth. Along the way, Yuma comes to appreciate her mother’s many sacrifices in caring for her, while her mother realizes that it’ s time to finally let Yuma grow up.