One day a rat named Pixel climbed out of his cave. He decided to wander the street searching for a city wall, the most hideous one he could find in order to make his new home. He discovered a wide variety of walls. Kitschy colorful ones, moldy ones made of exotic bricks, thick ones that smelled of medieval fights… Suddenly he found himself heading a high but solitary wall with a clean and transparent door. Pixel understood. The most interesting wall was inside himself. So he decided to change his search, to get accompanied with a lens tool and become a nomad rat for the pleasure of the eye and the glory of all the walls he’ll encounter.