Rika Furude and Satoko Houjou have been inseparable companions, growing up together in the modest hamlet of Hinamizawa. With their circle of friends nearby, they shared every day, and each instant overflowed with joy and mirth. Yet as both girls entered adolescence, a pivotal chance emerged for each of them, promising new horizons. Rika was resolute to chase her ambitions and yearned for Satoko's companionship along the way. Despite initial reluctance, Satoko chose to accompany Rika on this venture. Still, the pursuit of that dream carved a divide between them. Consequently, the pair drifted into distinct realms: Rika reveled in her fresh existence and forged new bonds, whereas Satoko sank deeper into solitude. Yearning to recapture the cherished memories of Hinamizawa, Satoko fell into despair and longed for a reversal. At the brink of hopelessness, an encounter with a paranormal presence altered Satoko's outlook and revealed fresh truths about Rika. The encounter left her with an unshakable conviction that she must pursue a path beyond the familiar, even if it meant confronting unknown dangers. This marked the start of her quest to secure the destiny she craves—by any means required.