My Vampire Princess (GL)

Blurb: A bizarre murder case brings together two people who had nothing to do with each other before. Qi Shengge is a cool, aloof policewoman who acts as if she doesn't care about anyone. Yet whenever she sees her, she can't help wanting to look again. Yehenara Lanyi, a black-hearted vampire who has lived for more than four hundred years, starts out controlling the entire game, only to gradually become a prisoner of love.

Theme: Justice will never be absent.