Origin

Yellow Sonja comes from a worls without sun and infested with vampires. Her father was the foremost scientist who studied the vampires and the ways to destroy them. Because of his work, she lived in safety. Her father mocked her for her cowardness, often hiding under her bed, and dubbed her Yellow Sonja. One night, the vampires got to everyone and turned them all. Yellow Sonja barely escaped to her father's workshop. Not being a great student like her father, she couldn't save herself. So she started praying. Her goddess appeared to her and gave her the means to battle the vampires.