After successfully solving the mystery surrounding the missing netsuke belonging to Sakuma Katsusaburo, Oko and Seiji are surprised by a well-known local antique art dealer stopping by their shop seeking their assistance. According to the old man, Hamamatsuya Souemon, the paintings on his hanging scrolls are changing each night and he asks that the siblings help get to the bottom of why. With the assistance of the Izumo-ya's tsukumogami the reason for these bizzare occurences is revealed and sometimes fact can truly be stranger than fiction.
Have you ever seen a hanging scroll in which
هل سبق ورأيتم لفيفة معلّقة يمارس فيها 
موموتارو وهيكاري غينجي مصارعة السّومو؟
Habt ihr schon mal eine Wandrolle gesehen,
¿Alguna vez vieron un pergamino
¿Alguna vez visteis un pergamino
Qui a déjà vu une fresque de Genji
et Momotarô faisant du sumo ?
Avevate mai visto un kakejiku in cui
Momotaro e Hikari Genji fanno sumo?
Vocês já viram um kakejiku que
Как будто кто-то рисовал 
Момотаро и Гэндзи Хикари в образе сумоистов...