WARNING! Might include: Bad Grammar.

--Backstory--

(Will be a bit confusing since i haven't done a full lore reveal yet.)

He is the last of the two prototype clones made during the early days of the resturant after the second one was murdered by the resturant owner (William Afton). He seeked revenge from human kind for treating them like useless robots. His opprotunity came upon him once shadow freddy (A controlled suit by puppet in this AU.) broke into the old backstage he was kept locked in. Puppet told the clone that he could kill the Afton for the best. But he needed to find the "chip" a thing Afton built back in the day to control all the old animatronics, exactly 14 connections to animatronics were made on the chip at the time the resturant was still running. Once 15th finally got his hands on the chip. After taking a short glance at the freddy mask left in the rundown pizzeria. He came into a false realisation that shadow freddy was also made by William afton (He was, but later reused by puppet to help the souls trapped in the shut down franchise.) he used the chip to capture shadow freddy's system in it too. Making it so puppet wasn't able to lead the souls from the animatronics. Without Puppet's guidance. 15th took the freddy mask to cover his face and went on the mission of killing Afton alone.