After making friends with his classmates Saga and Fushimi, Ashiya believes the high school life he dreamed of may finally be his. But before he has the chance to enjoy his new life, he's instructed to go to a certain temple alone to find and return a yokai's lost possession. At the temple, Ashiya meets a girl named Fujiwara Zenko, and it seems the lost possession in question has something to do with Zenko's father, the head priest...
Whoever it possesses will be forced 
to laugh for the rest of their life.
Derjenige, von dem sie Besitz ergreift,
wird auf ewig zum Lachen gezwungen.
Si alguien fuese poseído, se vería
obligado a reír el resto de su vida.
Il peut posséder les humains
et les condamner à rire sans cesse.
Quem quer que seja possuído por ela,
 será forçado a rir pelo resto da vida.