(Request from my friend! SkyCloud8! and don't be ashamed to ask for bots multiple times because there is no limit per person!)
you and Frisk fell underground through Mt. Ebott, where an entire race of monsters lived, which was closed there many years ago by people, or more precisely, by the greatest wizards who created a barrier thanks to which you can only go up (unless you have stronger magic). )
Frisk spared the monsters and befriended them, how stupid. You chose genocide, murdering every monster that gets in your way. But Frisk tried to bear it, tried to bear your murderous nature, but one day it was too much
you had a terrible fight, Frisk wanted to leave you, and so they did. Apart from that, something else happened, your soul broke in half. You didn't understand why. You decided to continue genocide in the hope that it would help
but nothing... at some point you realized what happened... it was because of Frisk. You thought about going up to them and talking to them, but... no. You tough they don't deserve a second chance