It's been almost a year since Natsumi and her family moved from the town of Onigafuchi. Her grandmother, a native of Hinamizawa village, fears that they will be cursed for abandoning the mountains, but Natsumi has never been happier, making new friends and enjoying school life.
When a terrible gas explosion in Hinamizawa wipes out everyone in the village, her grandmother is convinced it is the wrath of the village god, Oyashiro-sama. Natsumi's family has never taken Grandmother's beliefs seriously, but her devotion to Oyashiro-sama has taken a frightening turn. Have the old woman's fanatical convictions gone too far?
An independent side story set in the world of the main Higurashi series.
Story by Ryukishi07 and Art by En Kito.