Designs For What I Call "Post-Killer" Sans, Inspired By Thinking About @rahafwabas 's Second Comic On

Designs for what I call "Post-Killer" Sans, inspired by thinking about @rahafwabas 's second comic on Killer's origin, where he's re-programmed by Chara. The one on the left from an "interrupted" Bad Timeline (a timeline where Killer helped Chara or the Bad Sanses), and the one on the right from a Good Timeline (a timeline where he killed Chara). More information about them under the cut~!

The "interrupted" Bad Timeline is one where someone partially undoes Chara's programming. Because this version fully became "Killer" and murdered his friends and family, the person who rescues him leaves him a little bit of Determination -- as Alphys describes it: "The will to live. The resolve to change fate."

If he were turned fully back into "Sans," he might destroy himself in despair after what he's done. However, the Determination is contained safely inside his soul now.

This "Post-Killer" doesn't feel that he is still Sans, and so he goes by Z now. When people ask him what it stands for, he'll give them a different answer every time. He dresses very differently to distinguish himself from the skeleton he used to be, and though he can manifest his eye lights, he prefers to leave them off, because it gives him an air of ~mystery.~ However, he'll use them when he wants to express himself in a more forceful way, and sometimes they'll appear on their own when he feels a powerful emotion.

Although he doesn't see himself as Sans, some of Sans's core personality remains. Z is still a jokester and a prankster who enjoys having a good time with the people around him. He's more of a chatterbox, though, as well as more optimistic and willing to do things in self-interest. Z likes to present himself with a certain amount of swagger and very much enjoys flirting, especially with his S/O(s). He's very romantic and wants them to feel swept off their feet even if they've been together for a long time.

The Sans from the Good Timeline never fully succumbed to Chara's re-programming and never killed anyone, although it was very difficult for him. With the help of his loved ones, he's able to either resist the urge to gain LV, or is restrained when he's overcome until he can get control over himself once more. Together, they come up with a plan to defeat Chara. After Sans kills them, he uses their soul along with the other six to break the barrier, allowing the monsters to return to the surface.

Before leaving, Alphys uses the DT Extraction Machine to remove the extra Determination from Sans's soul. It hasn't quite fully gone back to its former shape, and Sans still feels the effects of the reprogramming sometimes. He has trouble making decisions -- when asked what he wants, his mind sometimes goes blank, and he genuinely doesn't know how to answer. His emotions also aren't as strong as they used to be, but they're still present -- just quieter.

For a while, Sans goes through a period of wondering if he is "really Sans" again, aware that his programming was still changed and that he's just one of a version of various Sanses. [Art of him during his recovery period.] However, in the end he decides that yes, he IS still Sans -- it's who he wants to be. Now that everyone's free from the resets and have a future to look forward to, he also feels a little more optimistic and energetic, and likes to dress in brighter colors than he used to.

[Although he just calls himself "Sans," as a nickname I refer to him as "Sans Avec," to distinguish him from the other Post-Killer and from Classic Sans.]

Both Z and Sans Avec have stains from the black overflow of Determination that used to leak from their eyes. Sans A. sometimes likes to put cosmetic glitter over his to make it look more like an intentional style choice.