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...
We promised to meet up early 
to play hide and seek today!
!اتفقنا اليوم أن نلتقي باكرًا ونلعب الغميضة
Heute wollten wir uns doch früher treffen
und Verstecken spielen.
Avevamo detto di trovarci presto
per giocare a nascondino oggi!
Combinamos de chegar mais cedo
para brincar de esconde-esconde!
Мы же договаривались встретиться
пораньше и сыграть в прятки.