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.
You'll no longer be able 
to stay in a guest room
Du bekommst kein Gästezimmer …
No podrás quedarte
en una habitación de huéspedes…
Tu ne pourras plus loger ici.
Você não poderá mais ficar
no quarto de hóspedes,