[DeepL Translation - needs review] Introduction to Volume 1: Hinamizawa Village in the year 2028. The village is depopulated and on the verge of extinction, but is saved by a group of 500 immigrants. However, there was a rift between the residents of Hinamizawa and the "Polaris Family Association," which believed in cutting off relations with others. And then, Oyashiro-sama's haunting occurs.... Rika Furute, who is in the hospital, entrusts her fate to Keitaro, Keiichi's only son.
(Translator: DeepL)
