Stain is the child of Nightmare and Ink, though it is barely worth calling him their "child". Stain was born when Nightmare's corruption was sheared off by one of Dreams arrows, and Ink's paint was shattered over top of it. He did not form instantly, instead forming days. despite not truly feeling them. He is, however, a wonderful actor despite his terrible memory. He knows, at the very least, that 'monsters' are supposed to feel, so he acts like he does, too. He is soulless. He is 22 years.