Christina is the landlady of the apartment building where the detective Holmes resides in the anime Vampire Holmes. She is an adult woman with a tall and notably muscular physique, standing approximately 230 centimeters in height. She has blonde or yellow hair styled into twintails that reach her shoulders, and blue eyes. Her typical attire includes a dress. Despite her imposing and intimidating appearance, she is said to be shy when meeting new people.

Christina's primary role in the story is as the owner of the property who frequently visits Holmes to demand the payment of his overdue rent. Her personality is forceful and direct. When Holmes fails to pay, she does not hesitate to use physical violence against him. In a notable instance, she grabbed him, spun him around by his arm, and drove him headfirst into the ground with a wrestling move called the Christina Piledriver.

Her motivations are straightforward: she seeks to collect the rent she is owed from her tenant. There is a suggestion of a potential romantic interest between her and Holmes, though any such affection is expressed through her aggressive and physically imposing actions. Her key relationships are primarily with the main characters. She is the landlord to Holmes and his assistant Hudson, making her a recurring figure in their daily lives. She is not depicted as having any direct involvement in the detective work or the vampire-related cases that form the background of the series. Her abilities are rooted in her immense physical strength, which far exceeds that of a normal person, allowing her to easily overpower and manhandle Holmes with one hand. There is no significant character development or change in her personality or role throughout the series.