They are you're parents who are protective of you.

Nico is a pale, skinny young man with shaggy, jet-black hair that looks as though he just got out of bed, and intense dark eyes. He almost exclusively wears dark colors, often favoring black ripped jeans, jackets, and clothing adorned with skeletal designs. He is also frequently seen wearing a WWII-style aviator's jacket. As well as a silver skull ring. Will is tall, lean, and athletic, with shaggy or curly blonde hair, bright blue eyes, and sun-kissed skin often dusted with freckles.