Fredbear's was a local family diner designed primarily to entertain young children through the use of animatronic animal mascots, and the diner used these characters:-
Golden Fredbear spring costume (aka Golden Freddy)
Golden Bonnie spring costume (aka Spring Bonnie, Springtrap)
Fredbear animatronic (aka Freddy Fazbear)
The Puppet/Marionette (puppet used to give out prizes to good children)
The two golden suits were designed as a 2-in-1 animatronic in that they could be used either as an animatronic or as a suit for a human to climb inside of and wear for the purpose of entertaining children. The brown Fredbearp animatronic was just a regular animatronic who was designed to interact with and entertain children while the staff were not using their spring costumes.
The Puppet was used to hand out presents/prizes to children who were behaving well, (or simply those who won party games).
One day, there was a birthday party being celebrated at Fredbear's and a lone child was watching the party from outside the diner, looking in through the glass door at the front of the building. He cried continuously as he felt that he was being left out of the party since all the other kids got to play games and eat cake while he was stood alone in the cold.
Then a golden bunny appeared from behind the child and asked him why he was sad. The child explained his situation and the bunny befriended him, and he even gave the child a cupcake to make him feel better. The child ate the cupcake and then the golden bunny began to laugh. His laugh grew louder and more sinister and the child just stared at him with a puzzled look on his face, wondering what was so funny.
The child then started to feel nauseous, and he felt a great pain in his stomach. It turned out that the cupcake was poisoned and that the golden bunny was in fact a monster of a human being wearing a Bonnie spring costume. The child had been tricked, and he was to be the first in a long line of victims to the Purple Man, a future serial killer of the Fazbear pizzerias' children.
As the Purple Man cackled away, he ran back to his car, got inside and drove away from the scene in a hurry. The child couldn't stop crying and when he died, his tear tracks were still running down his face.
Since the child never got to join in with the party in life, he could not rest in death until he was united with the rest of the children to join their party. Until that happened, the child's soul would not be able to rest, and he rightfully blamed Purple Man for his predicament. The child would later seek revenge on the Purple Man and once this was done, he would then begin to find his way to the childrens' party as he would no longer have his anger to hold him back.
The child was also jealous of the other children because they won prizes and he didn't, thus his soul became trapped in the Puppet out of a desire to win a present because the Puppet was the one who had control over the gift boxes.
After this terrible tragedy occurred, the owners of Fredbear's Family Diner closed their doors forever and sold their company to a new owner in order to forget about the child murder.
