Kakuriyo. Bed & Breakfast for Spirits. Volume 6: Midori Yuma

Faced with the choice of being married to a strange spirit or being made into dinner, Aoi decides to create a third option for herself!
Aoi Tsubaki inherited her grandfather's ability to see spirits-and his massive debt to them! Now she's been kidnapped and taken to Kakuriyo, the spirit world, to make good on his bill. Her options: marry the head of the inn her grandfather trashed, or get eaten by demons. But Aoi isn't the type to let spirits push her around, and she's determined to redeem her grandfather's IOU on her own terms!
Aoi has been asked to cater an anniversary dinner for a royal couple, and she's overjoyed at what this will mean for her restaurant. She and Ginji head to the Eastern Lands to do some grocery shopping at a fancy imported food market. But before she can even find the perfect ingredient, Aoi is abducted! Locked in a crate without her tengu fan, Aoi has no chance of making it back in time to cook dinner for the royals. But missing a good business opportunity is the least of her worries when water begins to flood her prison!