Gloomy Bear was an abandoned little bear, from the wrong side of the tracks who is rescued by Pitty (the little boy in the cartoons). At first, Gloomy Bear  is cute and cuddly as most young bears would be, but  as he grows up he becomes more wild. 

Now since bears do not become attached to thier owners or people like dogs and cats do by nature, Gloomy Bear attacks Pitty even though he is his owner. So Gloomy Bear has blood on him from biting Pitty. The Gloomy Bear range with blood is called Chax Colony Edition another cartoon by Gloomys creator, Mori Chak.