"Hazel" is a fan nickname given to a red furred squirrel that appeared in the 1963 Disney animated film The Sword in the Stone. This squirrel was a minor character who first met Arthur Pendragon face to face. After Arthur greeted her with a smile, she quickly fell in love with him. She kept pestering him though Arthur tried to keep away from her despite telling her that he was human. Eventually, Arthur was attacked by a wolf who she quickly saved him from. Shortly afterward, Arthur turned back into a human. She was quickly heartbroken by this revelation and was never seen again.

Back in 2008, someone decided to make a sad thread (which no longer exists) about how Arthur rejected the red squirrel that had a crush on him and, whenever /co/ gets sad, they make shit up to feel happy again.

Animoose drew a humanized red squirrel being cute and or flirty with Arthur and it took off like a rocket from there with numerous bits of story telling and drawfaggotry. After the initial creation in 2008, some asshole decided he didn't like it and no one else should like it either so he spammed it everyday until everyone was sick of it, because of that it wasn't until 2012 that anything else was done with her.

The original stuff is all cute and mushy and sometimes sexy (a lot of sexy sometimes) and the newer stuff is more story driven.