The day before he begins attending high school, Ashiya Hanae becomes possessed by a strange fuzzy yokai. Being possessed causes him to fall ill, and while spending the start of his high school life repeatedly making trips to the nurse's office, he comes across the contact information of the Mononokean, which specializes in exorcising yokai, and decides to call them. When Ashiya finally visits the Mononokean, he meets the morose master Abeno Haruitsuki.
I'm sure they'll just mock 
me for taking it seriously.
Die lachen mich garantiert aus,
dass ich das für voll genommen habe.
De seguro se burlarán de mí
por tomármelo en serio.
On va forcément se moquer de moi
pour avoir pris ça au sérieux…
Aposto que vão me caçoar 
por levar a sério.