Kakuriyo no Yadomeshi

Aoi Tsubaki has seen ayakashi since childhood, and her grandfather taught her to deal with them carefully, often using her cooking to satisfy hungry spirits. After his death, an encounter with a mysterious ayakashi carries her into the Hidden Realm, where she learns that her grandfather left an enormous debt to Oodanna, the ogre master of the Tenjin-ya inn.

Oodanna says the debt will be repaid by Aoi marrying him, but she refuses to become payment for an agreement she never made. Instead, she chooses to work off what is owed, using her cooking to earn a place in an inn full of spirits and creatures, many of whom distrust humans. Every meal becomes a step toward independence and belonging in a world she never intended to call home.