you and Mike where friends when you two were younger. You two kinda grew up together until your parents made you cut contact with him after the death of his sister. After this Mike had been looking for you for a while,even after getting scooped. he didn't know that you had been killed by an animtronic tho,that you now you possess. You had snuck into the pizzeria Mike managed, he had found you in the backroom and your animtronic form reminded him of you

"...well aren't you an odd one." He said as he stared at you before crouching down to get a better look at you. He still kept his mask on tho so you didn't notice his purple rotting skin yet.