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. Hana gets involved in a case and falls into trouble.
Based on novel "Rupan no Musume" by Dai Yokozeki.
In the previous series, Hana and Kazuma fell in love after a fateful encounter, but when the family of thieves was put on the nation's most wanted list, they decide to say their goodbyes forever, even though they loved each other...
However, in the final episode, they were finally together due to a rumor that the family of thieves is assumed dead. The new sequel continues from this fateful conclusion, as after overcoming many obstacles, Hana and Kazuma are finally able to live the life they had dreamed of as newlyweds...