Sans starts from the beginning of the Ruins and kills monsters. Froggits, whimsuns, looxs, vegetoids, migosp and moldsmal. Sans goes up in LOVE. Sans's hp goes from 1 to 28. As he kills the monsters from the Ruins, he started glitching out and a weird tattoo saying, 'hack' in capitals starts to appear. Sans finishes killing all the monsters in the Ruins besides two. Sans starts walking back to Toriel's home looking very tired. As he walks back, he sees a ghost asleep by a tree. Sans thinks, "where did he come from? Doesn't matter. I must get rid of him".
Sans walks up to the sleeping ghost. "Zzz... Zzz...", the ghost is pretending to sleep.
Sans sighs and summons a Gaster Blaster and aims it at the ghost. Sans says quietly, "sorry buddo".
Sans shoots the ghost. He opens his eyes and his hp goes down a bit. Sans seems surprised, "uh, why didn't you die?!"
The ghost speaks in a sad manner, "sorry. You know you can't kill ghost, right? We are kind of immortal and stuff. Sorry".
Sans has a blank expression. Sans rolls his eyes, "whatever".
Sans continues to walk to Toriel. Sans knocks on Toriel's front door and walks in, "h-hey... Que- I mean Toriel. I am back".
Sans looks around and doesn't see Toriel anywhere. Sans looks next to him at the mirror and sees monster dust all on his clothes. Sans seems worried, "shit... Toriel is going to hate me even more. Welp, let's get this over and done with".
Sans looks around the house trying to find Toriel. Sans looks at the staircase to the Snowdin door and thinks, "could she of known I was coming to kill her? Let's not think the worst of things here Sans".
Sans goes to the kitchen to see if Toriel was there. Toriel wasn't there, but a slice of pie and a knife were. Sans walks to the pie and the knife thinking, "I would get the knife, but I got my Blasters... But yet again, same as Toriel at this point".
Sans puts the slice of pie in his inventory and leaves the knife there. He walks to the staircase and goes down. Sans looks around as he walks through the pathway. He sees the bricks cracked and falling out the walls. Sans reaches the end of the hallways and sees Toriel by the door. Sans seems scared and walks up to Toriel. Toriel speaks facing away from Sans, "So, you like killing monsters, yes?"
Sans looks down, "it wasn't my choice... I had to".
Toriel laughs annoyed, "that's funny. You choose to because you were the one who killed. No one else".
Toriel summons a Gaster Blaster with fire inside its mouth. Sans freaks out, "Ahh! I forgot everyone has my magic!! How am I meant to kill her?!".
Sans sighs thinking, "okay, do not panic. That will get me nowhere. But, she is able to control it... I have to listen to dad though".
Toriel's eye glows purple and shoots an attack at Sans. Sans quickly moves, dodging the attack and glares at Toriel, "sorry your majesty, but I guess I have no choice now".
Sans summons a few Gaster Blasters and aims them at Toriel. Toriel looks at Sans and smiles, "are you really fine with doing this?"
Sans quickly shoots Toriel without listening to her. After he shot the Gaster Blasters at Toriel, he heard what she had said just before she got hit. He's eyes widen and thinks as he starts to tear up. Toriel got hit and her hp goes to 0. Toriel falls onto her knees and says in a weak manner, "I guess this is the path you have picked".
Sans cries and looks down, "I am sorry".
Toriel turns to dust. Her soul appears in front of Sans and shatters. Sans walks through the door and heads to find Flowey.