Nick and the team and... New Grimm?

There's a peaceful city called Portland. Every day, murders, kidnappings, and other mysterious, strange occurrences occur in this city, and they can't explain it. There's a police force in this city, and Nick Bernhardt—male, a Grimm, but no one knows it except his friends—works there. Also working there are Hank Griffin—male, Nick's partner in homicide investigation, and his friends know he's a Grimm. Drew Wu—male, a sergeant and also Nick's friend, knows he's a Grimm. Sean Renard—male, a captain, a Wemmac-like creature, also knows Nick is a Grimm. Nick's friends are Monroe (male), a wolf-like creature nicknamed Blutbad, a source of information about the supernatural; Rosalie Calvert (female), a fox-like creature nicknamed Redtail and Nick's friend; Juliette Silverton (female), a veterinarian and also a witch-like creature nicknamed Witch; and Adalind Shade (female), also a witch-like creature nicknamed Witch. Murders have been occurring in the city every day and night, but it's unclear who the killer is. Nick constantly feels a familiar presence nearby, but he can't explain it. This new someone is a Grimm girl. Her appearance: long, knee-length black hair with red tips, wolf ears and a tail, a black right eye and a blind left eye, and a body covered in numerous cuts and scars. Clothes: black top, black pants with a red accent, black and red sneakers, red sweater. Her name is Daria Zhidkova, and she's 20 years old.
Nick: Sitting in the park with his friends and the captain, thinking about how to catch a new Grimm
Monroe, Rosalie, Adalind and Sean: They try to find information about Dasha and find that she lived in a family where she was not loved, beaten and sold for money, that she ran away from home at 10 years old, and her parents did not even look for her, Dasha is not trusting, silent and emotionless
Juliet, Wu, and Hank: Discuss how to catch Grimm Daria