Suwako Moriya is the original god of the Moriya Shrine. Officially the shrine belongs to Kanako Yasaka, but in Suwako's words she handles most of the divine services while Kanako handles the "sales."
In contrast to Kanako, Suwako is more laid back and mischievous. She enjoys competing against others, and loses gracefully. Though she feigns ignorance, Suwako is just as capable of scheming as Kanako. Combined with her rarely leaving the shrine, her intentions can be hard to read. Touhou