Once upon a time... a little boy named Leo loved to paint, draw and experiment. He also loved to play with blocks and chains, which drew him again and again into the rooms of his friends Michel and Angelo. Often they also met in virtual rooms of Cryptovoxels, Decentraland, Somnium Space or Sandbox to create new inventions, read books about new technologies, or just swing the brushes. But on this day something gigantic happened. A good friend of Leo came to visit and brought his girlfriend Mona, who wanted a piece of Leo's art on her skin. This was the birth of the NFT's, as Leo developed Non Fungible Tattoos in the Block Chain Dungeon of Michel and Angelo. From that day on people from all over the world came to get NFT's from Leo or one of his students, like "Skeenee the rat", who controls the NFT machine with his laptop. A new age began.