Ashiya is sent to deliver a scroll to the Executive at the Legislator's request.
On the way, Ashiya runs into a yokai who looks like a giant beast. He attempts to flee, but when he learns the yokai is more considerate than he looks, he is relieved. After finding a lost object for the yokai, Ashiya hitches a ride on the back of the yokai to the Executive's Birdcage, since they happen to be going to the same place.
In reality, this yokai is--
This seems to have happened 
because he ate Underworld food.
Das Essen aus der Unterwelt
scheint der Grund des Übels zu sein.
Esto pasó por comer algo del inframundo.
T’as vu le résultat, sinon.
Parece que isso aconteceu porque
ele comeu comida do Submundo.