Second To None - Meichae

Megan Skiendiel is a detective, not the best, but better than most.
Her most recent case?
String together suspicious murders, all with the very same pattern.
But when she meets Yoonchae Jeung, a person who seems a little too closely related to the cases, she begins to wonder if the girl right in front of her is behind it all.

Yoonchae Jeung is a normal person.
Well, as normal as a person with dead parents could be.
But the one rule of her life, even unspoken,
Is to never, ever fall in love with someone who could hurt you.