One morning, Seiji runs into Kounosuke while out on a walk. The two young men discuss recent affairs on Ryogoku bridge, but Kounosuke suddenly loses his balance and falls in the river, accidentally pulling Seiji with him and losing his precious seal box, Kogare-kou, that has been passed down in his family for generations. Kounosuke does his best to look for it, but to no avail. Meanwhile, another young man appears to have found Kogare-kou and demands a considerable sum for its return. With Kounosuke facing being disowned by his family if he cannot get the object back, Seiji and Oko do their best to help him raise the money with the help of the tsukumogami.
And even if I used thirty ryo 
to get the seal case I dropped,
وحتّى إن دفعت ثلاثين ريو لاستعادة 
،علبة الختم الّتي أوقعتها
Und wenn ich 30 Ryo in eine verlorene
Schatulle investieren würde, …
Incluso aunque gastara 30 ryo
para recuperar la caja,
Aunque gastara 30 ryo
para recuperar la caja,
Si je dépense 30 livres
pour un boîtier que j’ai perdu,
E se spendessi altri 30 ryo 
per riavere il portasigilli,
E mesmo que eu usasse 30 ryo
para pegar meu recipiente de volta,
Если я возьму и заплачу 
эти жалкие тридцать рё за футляр,