The Bride of the Hearth (or "The Hearth's Bride" / "The Kamado Bride")

Shikako married into a family of onmyoji as a concubine. However, Shikako could neither see yokai nor hear the sounds of houses settling—she had no spiritual power at all. Deemed unsuitable as a concubine, she was cast out from the master's bedchamber on her wedding night, and from then on, she was assigned to tend the stove. Since it was a task her husband had given her, Shikako never left the stove. Because she stayed by it so constantly, everyone came to call her "the stove's bride." In time, she learns of the onmyoji household's customs and the mission assigned to her. As she faces these challenges, Shikako earnestly continues to make sweets. Around the stove, yokai who love sweet things loiter about, loitering still. Both humans and gods are sweetly won over by sugar. This is that kind of story. [It has been published as a book by Enterbrain.]