나가사와 마사미
Juri Ueno and Masami Nagasawa were originally approached for the role of Ruka and Michiru. Asami Mizukawa was cast for the other woman character Taeko Asano planned to have in the drama. Takeru, however was a last minute addition because the producers wanted a male presence in the drama. Initially, the drama was to be only about domestic violence (DV) and gender identity disorder, portrayed by Nagasawa and Ueno respectively. A character who used DV was then created.