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.
If you were to hear a strange voice 
in your home in the middle of the night,
إن سمعتم صوتًا غريبًا في منزلكم
،في منتصف اللّيل
Des Nachts erklingen geheimnisvolle
Stimmen aus dem Haus.
Si escucharan una voz extraña
en casa por la noche,
Si escucharais una voz extraña
en casa por la noche,
Si vous entendiez chez vous
des voix étranges durant la nuit,
Se, nel cuore della notte, 
sentiste delle strane voci in casa vostra,
Se você ouvisse uma voz estranha
em sua casa, no meio da noite,
Представьте, что вы посреди ночи 
услышали странный звук.