A2Z S01E01 - CHAPTER 1

Natsumi is an editor at a major publisher and her husband, Kazuhiro, works at a rival company. After 8 years of marriage, they have no children, and Natsumi still uses her maiden name. Little does she know that young postman Naruo stares longingly at her every time she comes by. One night, Kazuhiro makes a confession: He is having an affair with Fuyuko, a college student.