In the world in which the story takes place, people are made up of all sorts of colors. Red, orange, yellow, green, blue, purple, pink, gray, and brown to be exact. However, ten-year-old Ethereal is without color. She is an albino, a physical state admired and glorified by the rest of the world. Yet, that world is something Ethereal knows nothing about. Kept in a pure white room with tall walls encasing the yard she's given to explore, Ethereal has lived her entire life isolated from everyone else. The scientists tell her she's an important part of a project they have planned. Ethereal finds she has no issues with that. Almost no issues, anyway.
Ethereal grows up knowing only three people. The first one, Mr. Blue, is in charge of her physical health. She doesn't mind when he does a simple check of her state from time to time, but in the majority of cases Ethereal finds herself sedated in the small medical room attached to her living space. It is what he does when she's unconscious that bothers her about the project. Ethereal never finds herself hurt. Unfortunately, she always finds that blood has been drawn, there are multiple needle holes in her arms, and something simply feels off when she wakes.
As much as Ethereal doesn't like Mr. Blue's visits, they don't happen often. Who she does see everyday is a woman named Ms. Yellow. This scientist who is neither nice nor mean brings Ethereal her meals, checks on her twice a day, and overall makes sure nothing has happened to her. Who is nice to Ethereal is the final scientist allowed in her room, Eden Yonder. Mr. Blue and Ms. Yellow tell Ethereal to call him Mr. Green, but Eden refuses to let himself be called by that title. Ethereal grew confused when Eden told her long ago that he was in charge of monitoring her psychological health as she had no idea what that word meant, so Eden simply smiled and stated he was in charge of making sure she didn't turn into a nut case. Ethereal enjoys his frequent visits. His visits majorly contain them playing together or relaxing on the grassy hill. Occasionally though, Ethereal grows mad at Eden when he tries to tell her of the outside, normal world. She has no interest in such tales, and Eden isn't supposed to tell her that stuff anyway.
It would go on to be that Ethereal would find her mindset changing rapidly. Eden shows up for an unscheduled visit only to reveal in a contained rush that she has to make a choice. Ethereal can refuse a sedative he has brought, but if she does he has to leave never to return and she would never see him again. On the other hand, if she trusts him they can continue to be together. Knowing she would go crazy losing the lone source of love she's had, Ethereal chooses to trust him. She easily falls asleep. When she wakes, a small rundown brown and gray building is where she now finds herself. Eden is there too, of course, and after instructing that they have to keep the windows covered, he explains the truth.