Ruby Gloom is a Canadian children's show that revolves around the titular character, Ruby, who has a unique perspective on the world. While some kids might be afraid of the dark, Ruby embraces it and finds joy in the company of strange and quirky characters like Doom Kitty, Skull Boy, Misery, Boo Boo, and Mr. Buns. Together, they navigate various adventures and challenges. The series is based on an apparel franchise of the same name. The show was produced by Nelvana and began airing on October 13, 2006 in Canada on the network YTV. It features the voices of Sarah Gadon, Emily Hampshire, Peter Keleghan, and Adrian Truss.

The age of the demons has begun. Dr Faust has foreseen this rise of evil. Unfortunately, he is near death and is unable to personally battle this upcoming threat. Faust entrusts a young boy, Shingo Yamada, to take the responsibility of ridding the Earth of this new evil presence. Faust finds a birthmark on Shingo's forehead that signifies that he is the chosen demon fighter. Faust summons from hell what may be humanity's only hope of surviving: a less than enthusiastic devil named Mephisto rises. After signing a pact in blood to save humankind, Shingo and Mephisto set out to battle the supernatural world.