A2Z S01E03 - CHAPTER 3

Natsumi is at work when she realizes she left her phone. At that very moment, Naruo rings her and Kazuhiro, who dropped by the house, picks up. Kazuhiro grows suspicious. Why was the "post office" calling Natsumi? Later that night, Natsumi dines with colleagues at the office as Kazuhiro strolls in unexpectedly with Shohei, an up-and-coming author.