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'm sure that Paingy wanted to find 
the treasure before she moved.
لا بدّ أنّ بينغي أرادت العثور
.على الكنز قبل أن تنتقل
Sicher wollte Pengy den Schatz finden,
bevor sie umzieht.
Elle voulait sans doute
trouver le trésor avant de partir.
Sono convinto che Pitty volesse trovare
il tesoro prima di trasferirsi.
Видимо, она хотела найти
сокровища до своего отъезда.