the reason his soul is black: try and be creative and comment what you think it is. around Christmas i will write the answer i do not take ownership for any of this art in this project he just looks like original sans. nothing really changed. GeneticTale is just advanced in genetic manipulation. they are good planners. oh also this art is by GolzyDee on deviantart. bone blade picture is in Mystic Shadows bio.
Backstory: he was well its hard to explain but he came from gaster's lab and got out with mystic and her jailbreak. they became best friends and had crushed on each other. Mystic once discovered his crush and instantly told him. they both ended up together and the pups were born. sans named three while mystic named the rest. sans now controls Mystics left tail and helps her when she is weak.
