Ayakashi Yashiki no Mayakashi Fuufu: Keiyaku Fuufu wa Kamakura de Youkai no Tsudou Ie wo Mamoru

After the death of her parents, Makoto, who has lost her place, is given a tentative marriage to Chihiro, a young novelist, and her new house is an old folk house where yokai gather...? The story of ayakashi and a contract couple, spun on the ancient capital of Kamakura, is about to begin!

(Source: Shogakukan, translated)