Hake

はけ

Hake is the Inukami of the Kawahira family head, who assigns most of the missions to the other family members.
He formed a contract with the family head when she was around Keita's age, on a Non-contract day that coincidentally marked her birthday fifty years prior to the series' start. He claims he did this because he was bored with his eternal, uneventful life.
The contract item he received is the decorative beads he wears. Additionally, there is evidence that his weakness is fleas.