This show marks the return of the jidaigeki series "Hissatsu Shigotonin," which has had several seasons between the 1970s and the 1990s. The franchise came back in 2007 with a one-shot special, but this is its first full season since 1992. Makoto Fujita returns as the protagonist Nakamura Mondo, one of the "shigotonin," a team of hired assassins.
