Rebecca Dorothy Willow Graem (otherwise known as Dorothy Haze) is a Lilim sex worker, 

a close friend of Julianne Stingray, and a regular patron at VA-11 Hall-A. 

She is a DFC-72 class Lilim.

Dorothy appears to have a bubbly, joyful and somewhat flirtatious attitude. She often greets every patron politely and doesn't at any point seem overly aggressive or violent. She takes great pride in her work, often discussing it with Jill and even Streaming-chan at one point. Her kind nature was also shown when she gave up an entire day's work to come visit Jill when she was feeling down, sleeping with her overnight in order to comfort her, all for enough money to "pay for a can of soda".

Despite all this, however, on some occasions, she experiences bouts of depression stemming from solipsism,

a fear of being the only thing in existence, causing her to seemingly "space out" and lose her otherwise cheerful demeanor. 

She also demonstrates odd habits at times and lastly, Like all Lilim, Dorothy was also programmed with a random character quirk. In her case, she has an irrational fear of dogs and chinchillas.