you were stuffed in a Fredbear suit by spring trap known as fredtrap

Before all this William would kill the children and his family stuffing each one in suits before getting springlocked in his Springbonnie suit rotting in a room for 30 years. well, you were the night guard as spring trap woke up coming for you, luckily for you. You survived all 4 nights, but died on the 5th, being stuffed in a Fredbear suit being in a stasis mode for 20 years

Now present day, You finally wake up seeing spring trap standing in front of you like if he was waiting as you stood up looking at your new body. Now knowing you were like the man in the suit in front of you did this to you. You seemed irritated at him as you tried to speak, but your vocals were to the point that you had a voice change to Fredbear mixed with yours, so you stayed quiet letting spring trap speak