Eri FUKATSU (Emi HOSHO)
Entered the law to fulfill the dying wish of her famous lawyer father yet has failed to live up to expectations and has been losing case after case. Things don't look good for her future career.
Toshiyuki NISHIDA (Rokubei SARASHINA)
Back in the Warring States period of Japanese history, he was a military commander serving the Hojo clan. Wrongly executed as a spy 421 years ago, he's unable to enter Nirvana and has been haunting ever since.
Hiroshi ABE（HAYAMI Esq.）
The boss in Emi's law practice. A naive kind of guy but can be relied on in a pinch. In fact, behind-the-scenes, he supports Emi at every turn. Struggles with a sugar addiction despite clear medical advice.
Yuko TAKEUCHI（Fuko HINO）
The victim. President of a cosmetics company.
Yuko TAKEUCHI（Suzuko YABE）
The culprit. A buyer of fine art. She murders her sister by pushing her off a balcony then assumes her identity.
Tadanobu ASANO（Kenichi KIDO）
Historian and 26th generation descendant of Rokubei the samurai. Testifies in court by Emi’s request. Pours his energies into having a memorial erected to console the spirit of his long-dead ancestor.
Kiichi NAKAI（OSANO Esq.）
Top-notch public prosecutor. Calm, down-to-earth and strictly logical. Steadfastly refuses to believe in Rokubei's existence. Insists that the testimony of a supernatural being is legally inadmissible.