Subaru is at home doing his favorite thing, reading... but then Hiroto and Kawase show up, robbing him of his time alone. Then Kawase suddenly orders Subaru to buy a collar for Haru immediately, saying it'll help identify her in the event that she gets lost. So Subaru heads for the pet shop, where Nana helps him find a suitable collar. But Nana also tells him that many cats dislike collars and only end up stressed out by them. Will Haru approve of her new collar?
That prevents accidental strangulation 
when the collar gets caught on things.
So schnürt es ihr nicht die Luft ab,
sollte sich das Halsband irgendwo verhaken.
Lo que previene estrangulamientos
si el collar se atora.
Lo que previene estrangulamientos
si el collar se atasca en algún sitio.
C’est pour éviter qu’ils se retrouvent
pendus par leur collier.
Servono ad evitare incidenti in cui il collarino
si impiglia e soffoca il gatto.
Isso previne estrangulamento acidental
quando a coleira fica presa em algo.
А значит, кошка не задохнётся, 
если ошейник за что-то зацепится.