Ink was a conceptional Sans who escaped an abandoned world through the destruction of his own soul. Thanks to a paintbrush that fell into a void, he was able to gain the ability to create objects out of paint and ink. He now serves the guardian of the scripts of the Undertale AUs. Ink is an emotioneless being, but he fixed this problem by filling vials with the colors that were splashed on him. It allowed him to pretend to have a soul, so that he could feel.