Samurai Ninja Onimanji.

Ninja samurai Onimanji, who has been sealed in a cursed urn for 631 years and 59 days, is resurrected in the modern era by the assassin-for-hire company, Kika Company. The odd team of Kika, Shigeru, a bumbling assassin, and Onimanjii perform a series of dark jobs and must still compete with rival company Nutmeg.