A young woman awakens in the back area of the café she works at after fainting at work, with no recollection of her life or people around her. Two of her pals, Shin and Toma, are summoned to assist her in reaching her destination safely. When she is alone, she encounters Orion, an ethereal kid who can only be seen and heard by her. He explains that she has lost her memories as a result of his chance visit to her planet, and he promises to assist her in regaining her identity.