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.
シュレディンガーという名のネコに贈られたシゴフミを配達することになるフミカ。ネコを袋小路に追い詰め、もう少しで捕まえられる･･･というところに、別地区担当のシゴフミ配達人・チアキが駆けてくる。そのせいで惜しくもネコを逃してしまったフミカは、チアキも同じネコ宛てに贈られたシゴフミを届けようとしていることを知る。闇雲に追いかけても無駄だと判断した2人は協力してネコをおびき寄せる作戦にでる。作戦は功を奏し、フミカの周りにネコがわんさか集まってきたのだが･･･。
Fumika es asignado para entregar una carta a un gato, sin embargo, se topa con Chiaki, otro cartero shigofumi, que también está tratando de entregar una carta al gato. Sin embargo, el intento de Chiaki para coger el gato asusta a la basura.
