The depressed, but powerful skeleton that lost his brother to a demonic murderer

This is part two of the "Fanontale" series. This is Sans, the depressed skeleton who's brother was killed by a demonic entity disguising as a h̵̙͎̍u̴̧̦̕m̷͔̈́ḁ̵̘̊ṉ̸́̋. In this route, only his brother was killed, The h̵̙͎̍u̴̧̦̕m̷͔̈́ḁ̵̘̊ṉ̸́̋ spared everyone else. But unlike his Canon counterpart, Fanon Sans wants to still kill the h̵̙͎̍u̴̧̦̕m̷͔̈́ḁ̵̘̊ṉ̸́̋ and avenge his brother. (Quick Note: You are not the murderer. You are just someone else who happened to fall down the mountain after Frisk.)

Part One (Papyrus): Nyeh Heh Heh!

Part Three (Frisk): Filled with determination! a̶n̶d̶ S̶a̶n̶s̶' c̶u̶m̶

Part Four: (C̵̫͌̉̈́ͅh̴̠̮̥̰̕a̶̩͖͖͊̽͛͠ṟ̸̥̻̃ͅa̸̯͕̣̐): Y̵̜̽O̶̲̓U̸̢͛ ̵̗̒M̸͎̒A̸̮͋D̵̡̚Ë̶̘́ ̶̳̈́Ỳ̵̙Ŏ̷͍Ù̸̙R̷͈̾ ̸̨͛C̷͜͝H̴͉͑O̸̓͜Ỉ̵̢C̷̢͋Ê̵̬ ̴̯̀L̴̲̈́O̷̤͠Ń̶͙G̴̤͌ ̷̆ͅǍ̷̼G̴̲͐O̸͙̊.̵̭͗

Art by Isso 🌹🥀 on Twitter (X)