Lupin no Musume

Hana comes from a family that has been thieves for generations. Hana refuses to become a thief, and she wants to live a normal life. She currently works as a librarian, and she is dating Kazuma, who works as a public officer. She hears that Kazuma’s family are all public officers. One day, Hana visits Kazuma’s family. She discovers that Kazuma’s family, including Kazuma, are actually all police officers. Kazuma gets involved in a case and falls into trouble. To help Kazuma, Hana helps her family commit theft.
(Source: AsianWiki)
~~ Adapted from the novel "Rupan no Musume" by Dai Yokozeki.