Ryota a medical college student, meets a girl, Air, who has an invisible body. She has lost her memory and is being chased by a mysterious organization. Ryota decides to protect Air from the hands of the organization.
Overview：Ryota a medical college student, meets a girl, Air, who has an invisible body. She has lost her memory and is being chased by a mysterious organization. Ryota decides to protect Air from the hands of the organization.
