The Mutant Known As 43

Subject 43, formerly known as Zach, hasn't been the same ever since he murdered his little sister. His father sold him to a lab, where he became a mutant, capable of exterminating basically anyone. He comes across Slender man, who decides that he could be a helpful proxy. Now living in the mansion with the other pastas, he finally feels appreciated.

Feel free to use 43 and my other custom pastas, I just request credits.

Swearing, gore, and potential trigger warnings.