"Ahh! I was doing so well just now, already had 'Pig Deer Butterfly', and was about to get 'Moon Viewing Sake' too! I was catching up on the score... You better have a really important matter!" Kaku complained continuously as she left Tsukumono Village with Kamiya.
Kamiya had just gone to the craftsman's sister when she was playing Hanafuda cards with Seto General.
Hanafuda is a traditional Japanese card game that has existed since the Edo period.
Kamiya didn't know much about this card game; he only knew that the general idea was to collect specified "roles" using different cards in order to gain points and win, as Kaku mentioned the 'Pig Deer Butterfly' and 'Moon Viewing Sake', which are among the "roles" in Hanafuda.
Furthermore, it seems that Nintendo, a "century-old shop" established during the Guangxu period of the Qing dynasty, initially started by selling Hanafuda cards.
"It's an urgent matter, very urgent. Come with me to Inunaki Pass."
