Ukon is a beautiful Bunraku puppet created in 1870, supposedly by the Master puppet-builder Unosuke Koizumi III. But Ukon doesn't act as a good Bunraku puppet should. When he is with Sakon, he is forward, obnoxious, flirtatious, coarse, and very egocentric. Together, Sakon and Ukon travel around Japan, solving mysteries, murders, and horrific crimes.