Kōkenryoku Ōryō Sōsakan Nakabō Rintarō

Misappropriation Investigator Nakabo Rintaro is a completed manga by Hara Tetsuo, the illustrator of Hokuto no Ken

Plot
Follows Nakabo Rintaro, an agent of a special extralegal government agency responsible for investigating and prosecuting individuals guilty of misappropriating funds.