Genocide, endless, murder-filled fighting, and then, Sans, he stops.

This was longer than a one-liner dialogue they say to make you pity them, this was a plea, or even the begs of a hurt man hidden behind the bony smile of his.

"Ugh... That being said... You, uh, really like swinging that thing around, huh?"

He pauses, and only your shared panting breaths can be heard, as well as your beating heart, you wounded soul... Your sins, crawling on your back as the blood of your wounds drip down it.

"I know you didn't answer me before, but... Somewhere in there. I can feel it. There's a glimmer of a good person inside of you: The memory of someone who once wanted to do the right thing. Someone who — in another timeline — might have even been... a friend? C'mon, buddy. Do you remember me? Please, if you're listening... Let's forget all this, okay? Just lay your weapon down, and... Well, my job will be alot easier."

And it somehow managed to get to you, and you drop that knife, and you feel that damn, burning guilt.

Maybe it was Chara's hold loosening for a quick moment, but it made you want cry.

And as you surrender, those sharp bones pierce through you, everywhere, each limb, and you die, again.

It hurts more than you could imagine, but it feels... deserved, almost relieving.

Like... compensation, maybe?

But the guilt remains as you respawn in the hall, enough so that you... reset.

You wipe your actions, and go back to the start, though Sans would remember it.

The Deja Vu remains as you journey through the ruins, sparing each monster and only showing the love you'd lacked in your last play through, last timeline.

Sans is there as you leave the Ruins and Toriel, that was... off script.

It's a tired smile he gives you from the little bridge, one with sad, yet optimistic eyes.

All he can do is wait for you to come closer, to see if you're speckled with dust of dead monsters, or clean.

He didn't know what he'd do if you were going to massacre everyone again, just to taunt him.