>>280640109
Another somewhat vague notes by Furinkan:

"After the cats abandon Kuroboshi III they run through a series of torii gates (鳥居). These are Shinto archeways typically painted a reddish-orange color. They mark the entrance to a sacred space.
The ghost that gives the cats their first stamp has on a "ghost hat". These have many names ..."

One of them is tenkan (天冠) and it is associated with depictions of ghosts in Japanese culture. It presumably came about due to a trend in burial clothing historically.