Hiiragi iwashi is a traditional Setsubun charm made from spiky holly leaves and a grilled sardine head. In Japan, Setsubun marks a seasonal “reset” in early February. And hiiragi iwashi is one of the most literal versions of that idea: a small, practical-looking object placed near the entrance to symbolically keep oni (misfortune) from entering the home. Quick Summary: Hiiragi iwashi is a Setsubun charm made from spiky holly leaves and a grilled sardine head, placed outside (usually near the entrance) to symbolically keep oni—misfortune—out. It’s most associated with western Japan, and households vary on when to take it down ...