Daughter of Lupin 6-7

The girl is from a criminal family. Her looks are deceiving, but illegal activities is bred into her. She tries to break free and defy her genes. As such, she works at a library and surrounds herself with books and focuses on providing service to the patron. It is a surprise then when she finds out her man's family are all cops. Yes, she is dating a man who is from a household of cops. Where do loyalties lie?