He and Reiko had been married for five years and were happy, but even though they didn't say it, they both felt like they were in a rut. - One day, while talking with my colleague Kawaguchi, we started talking about women, and he boasted that married women who have been married for three to five years are the easiest to fall in love with. - I believed in Reiko and replied that it would never happen, but combined with the rut of our married life, I ended up being taken in by Kawaguchi's advances. - A few days later, Kawaguchi invited Kawaguchi and his wife to his home and forced him to leave them alone for three hours for a reason...