Heavenly delusion, 1

An institution surrounded by high walls and full of vegetation where some children live. During a written check, Tokyo receives a message that reads: "Would you like to go outside outside?". And that gives her the opportunity to imagine what the world can be like beyond those walls that she has never crossed. In the outside world, Maru and Kiruko try to survive as they search a devastated and ruined Japan for Eden. A totally closed Eden and a Japan turned into a hellish wasteland. Try to unscramble the riddles scattered throughout as we move from one of the worlds to the other!