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.
But if there's even a 0.1% chance 
I'll escape this fuzzball,
Wenn es auch nur eine 0,1%ige Chance gibt,
diesen Riesenfussel loszuwerden,
Si hay un 0.1 % de probabilidades
de escapar de esta bola de pelos,
Se houver 0,1% de chance 
de eu fugir dessa bola de pelo,