Because you like Carrie Bradshaw in Sex and the City

A scary monster on the outside, James P. Sullivan is really a softie on the inside. See them in Monsters, Inc..

Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

Pro: Johan Liebert is handsome and charming. Con: he's also a sociopathic killer. See them in Monster (TV Show).