Black Widow Business / 2019

In Osaka, Sayoko Takeuchi indulges in her evil ways. She targets old wealthy men and marries them for future inheritances. She works with Toru Kashiwagi who runs a marriage agency. Sayoko Takeuchi is married to a wealthy elderly man. One day, Tomomi Nakase hears her father was taken to the hospital. She rushes to the hospital and learns her father is...

Black Widow Business / 2016

Kozo Nakase attends meetings for single widowers looking to remarry. He meets Sayoko Takeuchi and eventually marries her. Not longer after their marriage, Kozo Nakase suddenly collapses and dies. Kozo Nakase leaves everything to Sayako. The rest of his family are left out of his will including his daughter Tomomi. Tomomi hires a private investigator, Honda, to find out more about Sayoko.

お助け司法書士！会津若松“後妻業”殺人 / 2015