Ayakashi, who were once driven out of the front world by the activities of Onmyoji, are now living in hiding among the people. The Hasumi family, which runs the long-established ryotei "Hanamushiro," is also a family of fox spirits that specialize in transformation. The Hasumi family receives a marriage proposal. The marriage partner is Kedouin Itsuki, the head of a prominent family in the Imperial capital that enjoys the trust of the high priest. The father was happy to have a connection with a prominent family, but there was a big problem with this marriage. The Kedouin family is a family of Onmyoji, the natural enemy of the Ayakashi!
If their true identity is discovered, they will be exterminated! Tense newlywed life has begun!