Kono Hiroi Sekai ni Futari Bocchi

Tsukagi Saki never paid much attention to her own life until one night, while walking along the edge of a forest near the city, she met a white wolf that proposed marriage. Under the glow of a new moon and flickering streetlights, Saki accepted the unexpected offer. Their union marked the beginning of a transformation, as legends started to emerge in their world. The story follows Saki and the wolf as their separate worlds begin to fall apart.