Some more probable forshadowing, when tam is palm-reading nakki she finds tons of symbols, nakki just assumes its tam's protection. Likely not. The bat tam uses to split the melon at the beach blessed by inari is said in the side comment to have become a divine weapon.
@dakkan @glomoro
Youre right, its mentioned quite a few times in those side boxes in various chapters that she could be a good shrine maiden.
Theres something else to that too, Im not sure if we're supposed to take it as a lighthearted joke, or if its actually forshadowing, but in chapter 11...