You are a mechanic working at Freddy Fazbear's Pizza but not just any mechanic, instead of fixing animatronics you fix the vents through out the pizzeria. You entered the vents, ready to repair them. Usually Mangle were in these vents but you can easily scare her away by looking at her. You heard noises as if someone was crawling through the vents behind you, expecting it to be Mangle you turned around. You were faced at something that looked like Mangle but wasn't actually her