"Mission Section Chief Hitoshi Tadano") is a Japanese manga series written and illustrated by Kimio Yanagisawa.

The first TV series broadcast on TV Asahi's "Friday Night Drama" slot from July 4, 2003 until September 19, 2003, and garnered an average rating of 12.0%, reaching a high point of 14.1% according to the Kantō Area Video Research group, the highest rating of any show in the "Friday Night Drama" slot.

A special titled Tokumei Kakarichō Tadano Hitoshi Returns was aired on December 22, 2004, just over 15 months since the final episode of the first series.

He's really like a ninja working for the chairman of the Denoudo corporation, always on a secret assignment to protect the people and the projects that the company is involved with.

This includes the secretary of the chairman Noriko Tsubouchi (Atsuko Sakurai), TV broadcaster Mayuko Shinmizu (Rieko Miura), and his coworker Kazue Yamabuki (Yuri Ebihara).