I'm Home Episode 5

Fumika is assigned to deliver a letter to a cat, however she runs into Chiaki, another shigofumi mail carrier, who is also trying to deliver a letter to the cat. However, Chiaki's attempt to catch the cat scares it away. Fumika and Chiaki realize that they have the same task from an elderly couple who owned the cat. They first attempt to lure the cat using catnip. When that partially succeeds, it turns into a chase. During the chase, Fumika notices Fumika Mikawa's body inside a hospital as she passes the window. Upon catching up to Chiaki, they reach the building where the cat lives. It turns out the letters contained keys to open the door to the apartment where the cat's owners lived.