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...
The location of the hidden 
treasure. There is one hint...
...موقع الكنز المدفون. هناك تلميح واحد
Schau dir nur den Hinweis an,
der zum Schatz führt!
La pista del sitio
del tesoro oculto está aquí.
La pista del sitio
del tesoro oculto está aquí.
L’indice qui mène au trésor
se trouve ici !
C'è un indizio per il luogo 
dove è nascosto il tesoro, ed è...
A pista para encontrar o local
onde está escondido o tesouro
Подсказка к нахождению сокровищ...