My Girlfriend is an Agent (2009)

Tired of his relentless loan-sharking ways, former-male-host Tsukasa Sudo settles into a new job as a thankless errand boy for a local hostess club.

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.

Male lead had a crush on female lead....they met after many years ... She is now an NIS agent infiltrate his company... In the end she is an agent who becomes girlfriend with the ML

Both are hilarious. Badass kickass woman, just relax have some good laughs. Life is short.my wife is a gangster actually not a wife.

Nam Sang-mi plays widowed police officer Lee Sun-ae who finds herself suddenly immersed into international espionage by Han Yoo-il (Dennis Oh), an undercover agent. Lee Joo-hyun plays Kang-Jun, who's recently transferred to the Criminal Investigation Department. He opens an old case involving Sun-ae's past that leads him to an entanglement between the current political/economic powers and their secrets. One of them, oddly enough, being Han Yoo-il. Who is this man? Why is he here?

Both were comedy/action/ thriller. Funny, cute, a touch of love romance. Light, easy watch. The fighting scenes were just enough, not brutal, bloody hell. Both couple were pair nicely, great chemistry.