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.

The ayakashi world is ruled by eight great yokai called the Hachiyo. After Aoi succeeded in offering hospitality to Matsuba, one of the Hachiyo, the master innkeeper takes her out to the capital of the hidden realm as a reward for her achievement.

When Aoi is summoned by Byakuya, the chief of the accounting office, he points out that she hasn't made any sales yet. He also tells her that if she cannot produce results, Moonflower will be closed.

While Aoi is contemplating the dishes for the ceremony, Raiju, a noble from Youto, suddenly appears before her. Although she runs around trying to get away from him, he follows her around suspiciously and directs his malicious intent towards her.

The kagura hall is lit up and the ceremony has started. Lured by the smell of cucumber, Chibi goes inside the screen. After hearing his scream, Aoi pulls up the screen only to find out that the umi-bouzu has the same feelings that she had in the past.