Strange little creatures have begun following your heroine around. At first it was just one. Now there are dozens of them, and apparently she’s the only one who can see them. Until she bumps into him. He can see them as well, and he’s not happy about it.
What are the little creatures?
Why are they following your heroine?
Who is your hero?
Who is the man that can also see the little creatures following her? (He could be your hero, he could also be your villain.)