Does Toy Chica have a soul?
In The Office, Toy Chica's mask appears in The Office in a dirty box along with the other toy animatronics. Also, she can be seen if player doesn't check the ventilation. Toy Chica is later burned down, setting the soul inside her free (If she is possessed).
The first crush of Toy Chica is Freddy Fazbear. She describes his top hat, and that she will get him by asking for help with homework. Meanwhile, in her backpack, Foxy's hook can be seen. The second crush is Twisted Wolf from Five Nights at Freddy's: The Twisted Ones.
Mr. Cupcake, also simply known as the Cupcake, is an anthropomorphic cupcake animatronic who is usually accompanied by Chica. It has pink-frosting with two large yellow eyes, a yellow-striped birthday candle with a vinyl candle-light, buck teeth, no wrapper, and black eyelids.
The tiny toy chica's beak is detachable, which is why it is on the floor next to the girl. So when the company made the big Toy Chica, they made her beak detachable; Which is why she takes it off in the second game.
Toy Chica does it to make herself look scarier. I'm pretty sure she removes it so she can properly bite the player.
1. The Toy animatronics were made quickly. The engineers simply didn't have time to make sure that the beak was attached correctly as it was a rush job to get the animatronics done in time for the opening. So anytime Toy Chica moves, it just falls off.
Chica's cupcake is called Mr. Cupcake, although the fandom has given him the name, Carl.
Toy Chica. Toy Bonnie seems to be in love with Toy Chica, and they have been seen lovingly looking at each other.
Mangle is Foxy's girlfriend. She is very important to him. When Foxy was feeling down, Mangle helped cheer him up and they kissed. Mangle was unfortunately destroyed by Chica, which caused Foxy to be slightly frighten of her.
"You won't get tired of my voice... will you?" "Let's go somewhere more private... so I can eat you."
Is Toy Chica's beak in mangle?
No, it is not Toy Chica's beak inside The Mangle. It is The Mangle's bowtie, it is just made by the same creator so it was given the same shapes as Chica's beak but not color.
Foxy the Pirate Fox is a major antagonist in the Five Nights at Freddy's franchise. He is an out-of-order, worn down animatronic who is possessed by the undead soul of a child named Fritz.

One of Chica's lines in Ultimate Custom Night is "I was the first. I have seen everything". This implies her child was the first to be killed in the Missing Children's Incident.
Borrowed from Spanish chica (“girl”).
Unlike her original counterpart, Toy Chica's body is noticeably curvy, rather than simply round and ovular like the original Chica's. Just like the original Chica, Toy Chica has a bib.
While on the Show Stage, Toy Chica can be seen with her normal eyes and beak. However, she removes them once she leaves the stage, and she can be seen beakless and eyeless, save for her endoskeleton eyes, as seen through the cameras in various rooms.
It is entirely possible that, like with the other Toys, Toy Chica is possessed by one of the murdered children from SAVETHEM, but this has not been confirmed.
It is theorized that Mangle is possessed by an unknown child who was killed by William Afton, much like the other animatronics.
Chica the Chicken is a yellow chicken animatronic character with light purple or violet eyes. She wears a bib that says "Let's Eat" and is the only female character in the game.
Since FNAF 4 happens before FNAF 2, this is not causal. It's a pure coincidence that this little girl has a toy Chica with a broken beak. It's just Scott's way of telling us, "You wanted to know who caused the bite? It was Toy Chica."
What do you do if Toy Chica is in the vent?
New Chica- She is also easy to deal with. As with Bonnie, she appears in the vents (in this case, the left one). While clicking on the lights in your vents, if you happen to see her in your left vent, immediately put on your mask.
Chica has a highly upgraded voice box that allows her to sing better, this voice box also allows her to mimic voices, and produce frequencies loud enough to stun other animatronics or robots.
She has a slimmer and more feminine figure than her older counterpart, as stated from above. Toy Chica reveals her endoskeleton eyes the most out of all the 'Toy' animatronic. This is because as soon as she leaves the show stage, she loses her beak and takes off her 'real' eyes.
Shattered Chica's body is cracked and broken, with some paint scraping off on her legs and face. Her beak is gone, with a large hole in place of it, revealing the endoskeleton jaw underneath.
Functionality. Glamrock Chica is very durable as she is able to survive deadly impacts such as getting crushed by a hydraulic press and can remain operational even while sustaining severe damages.