Undertale and any other intellectual property this may contain do not belong to me.

The cathedral was strangely silent, light streaming through the stained glass windows. A small, scared child walked through it, and a skeleton their height awaited them.

"heya," It said. "you've been busy, huh?"

"so, i've got a question for ya. do you think even the worse person can change…? that everybody can be a good person, if they just try?" the skeleton chuckled at something before continuing.

"well, here's a better question. do you wanna have a bad time? 'cause if you take another step forward…. you are really not going to like what happens next."

The child took a step forwards.

"welp. sorry, old lady. this is why i never make promises."

FIGHT lines appeared, and Sans tried to continue, but Frisk interrupted them.

"Why?"

"why what?"

"Why do you keep attacking me?"

Sans was taken back by their words, by their tone. That wasn't a genocidal murderer speaking, it was a lost, terrified child.

"I just wanna go home, but you keep trying to… to kill me! Almost everyone I meet is trying to kill me, and I just wanna go home!"

Suddenly, Sans' wrath halted. The human who had killed his brother, who had killed Papyrus and Undyne and so many monsters, had been acting in self-defense. They had been afraid to die, and almost every monster they came across tried to kill them, to steal their SOUL. They weren't a monster, just a scared, lost child.

They weren't the monster, here.

Sans could only slump in defeat, knowing that, for all they had done to him and his people, Frisk had acted in self-defense. They were right; almost every monster they met tried to kill them, even him and Papyrus.

"Please… please don't make me kill you, too. I don't wanna, but if I don't, you'll just keep coming back!"

"you killed papyrus."

"He killed me five times! That electrical trap, the puzzles, his special attacks, they all killed me! And every time I die, I just come back, and I have to do it all over again!"

There was nothing more to say. Sans could only meekly hang his head and run, taking one of his shortcuts, trying to escape the guilt.

Frisk wasn't a monster.

But they were.