Kahori Mirumachi, a lawyer, repeatedly finds herself in problematic relationships. Despite her "no cheating" rule, she unknowingly starts an affair with Sunagoya, a high school teacher in the midst of a divorce.
亀井絵里 (Kamei Eri) is a former idol under Hello! Project as a 6th generation member of Morning Musume.. She joined on January 19, 2003 along with Michishige Sayumi and Tanaka Reina. Kamei suffered from atopic dermatitis, which eventually lead to her graduation from the group and Hello! Project along with 8th generation members Junjun and Linlin on December 15, 2010. Due to inactivity and her departure from UP-FRONT AGENCY afterwards, she has effectively retired from the entertainment industry.