Dusted Soul

Story
It starts out normal, the usual until Chara's soul starts to feel pain and she starts to feel pain everywhere. And she fell down by accident when she was trying to get back Home and she broke her Right Arm's bones. Which she sounded in pain meanwhile Sans was killing everyone because he remembered all of the genocide and then he heard Chara's screams so he teleported there and saw her in so much pain so he took her to The Lab alphys was terrified when Sans came in since she knew Sans was doing. but She helped only because she wanted to be spared so She try everything but nothing was working Sans becoming insane over the genocides and Chara possibly dying from something weird. Made him snap he killed alphys and spent all of his time with Chara but then Chara died which made him become so insane that he when to complete his mission and killed everyone and Sans being filled with so much anger changed his soul trait somehow. his Soul trait is now Hate, Fear and Determination which was enough to kill the player which means there is no one in his World and since he was feeling all of this rage, he always killed any human that fell into the underground. But he always cried every single day since Chara's Death the genocides were already bad enough but now Chara dying from something that he didn't understand is even more painful what is even more painful is that he saw her die in front of his eyes. he even killed Unknown!Sans out of rage, which gave him the ability to travel AU'S but he didn't at one point he got so sad, depressed that his soul trait change to Sadness, depression, unfelt rage and TRUE H.A.T.E. with all of these emotion combined he couldn't stop his Rampage anyone who entered was killed and if a Chara entered The AU he would cry even more and hug The Chara while saying. I wish you were my Chara. And didn't kill The Chara. And he always tried to kill himself but he could never kill himself and also since he destroyed everything which means there is no way to get rid of The DT that he has.

Information
This will not happen in Dust!Dtale. Since this is only to show if Chara's Soul give up during the events of Dust!Dtale. Same thing applies with UnDeterminatale and Dtale!FlowerFell and Others.