Erika and Masashi, a working couple who had been dating on the premise of marriage, lived happily with goals such as "I want to have two children in the future." Erika's ex-boyfriend, Kunio, was the worst kind of man, a useless man with drugs, violence, and debt. Erika ran away without being able to break up even if she consulted to break up many times, met her current boyfriend and lived together.