A girl nicknamed "Paingy" invites Tama and Takeshi on a treasure hunt. For some reason, there's a cat that looks like Tama on the treasure map. But all of it is a plan put in place so that Paingy can tell Takeshi something important.

Takeshi is staying home from school because of a fever. Before he knows it, he's hanging out with Tama and the others. The sights and experiences of Third Street from the perspective of cats and dogs is vastly different from what he knows...
I'd never thought about what 
Tama does when he goes out.
.لم أفكر بما يفعله تاما حين يخرج
Ich habe noch nie über Tamas
Sozialleben nachgedacht.
Nunca había pensado en sus planes.
Nunca había pensado en sus planes.
Je me suis jamais demandé
ce que faisait Tama sans moi.
Non avevo mai pensato a quello che fa Tama
quando esce di casa.
Nunca pensei nas
atividades sociais do Tama.
Я никогда не задумывался,
чем Тама занимается на улице.