On her way to school, Aoi, who can see ayakashi, encounters an ayakashi she's never seen and is abducted to Tenjin-ya, an inn in the hidden realm. There, she learns that her grandfather promised that she'd marry the master innkeeper to pay off his debt.
He may have been an 
unexpectedly nice ayakashi.
Er ist wohl doch
kein schlechter Ayakashi.
Je ne l’aurais pas cru si gentil.
Ele devia ser um ayakashi muito gentil.