Season 1

A loser teacher, Haruaki Abe, starts his new position at a school filled with youkai called Hyakki Academy. He then goes to visit a shut-in zashikiwarashi named Beniko so everyone can be included in the class picture.

Hyakki Academy is in a panic because of the upcoming physical exams. Haruaki has trouble doing the cyclops Rensuke's eye exam and getting the daidarabocchi Oota's height. But further misfortune falls upon him as he's also tasked with cleaning the pool...

Haruaki is invited to observe Miki's youkai studies class but things immediately get hectic when Miki decides to demonstrate his powers by having a little bit of sake...

Youkai TV wants to do an up-close-and-personal interview with Haruaki?! Of course, he has trouble during an extracurricular lesson and his students try to make him look good but it fails! Will this thing actually air?

Haruaki goes back to his family home, but then a few of the students decide to visit him there. While they're there, the students meet Haruaki's older brother, Amaaki, who seems to dislike youkai.

It's Sports Day at Hyakki Academy! A scavenger hunt relay, mandragora toss... plenty of youkai-themed events! A fiery battle over Class 2-3's victory and Haruaki's xxxx begins now!

It's Sports Day at Hyakki Academy part 2! Class 2-3 is struggling at 3rd place, but they're trying to get to 1st place with the obstacle course relay. But an accident occurs and steers the event into an unexpected direction.

Amaaki, Haruaki's twin brother, takes his place and becomes a teacher for a day. Soon after, Yanagida's love potion cause havoc at the school. And to finish the episode off, the whole class goes to a public bath.

Numerous cases where animal youkai are getting abducted and having their fur shaved off occur! Mamekichi, Tamao, and Hatanaka also disappear so Haruaki and Sano try to save them. Will Haruaki be able to save his furry friends in this mysterious case?

This episode involved a huge event: a school camp! Or rather, it ended up being a final exam for spookology. Can the students safely get through the old school building and the various trials that await?

Haruaki does some parent-teacher conferences, but of course, the parents are also youkai, so they don't go very smoothly. On the way home, he scouts Kyoto with Miki and Hatanaka for a future school trip but then they all remember a certain incident...

Kaminarimon and Tokyo Tower! Class 2-3's excitement over their Tokyo field trip comes to a sudden halt when Haruaki gets swept away by a wave of salarymen into the subway and gets lost. The students split up to find him but Sano gets a really bad feeling.

Summer vacation is finally here! Hijita and Rensuke enjoy Beniko's special shaved ice, while Mamekichi and Tamao go catch some bugs. Meanwhile, Haruaki goes to a bookstore where Sano works and is recommended a book but that ends up causing havoc!

During the middle of summer vacation, Beniko's family home that's a bed and breakfast is going to be featured in an occult magazine. Beniko and her friends work together to spook the scientist that the reporter brought along to disprove her home being supernatural.

Summer vacation still continues! Haruaki is invited to Miki's family home in Mount Ooe. There, he finds out Rintarou's dark past and ends up having to fight a great enemy.

Officer Yamazaki, the doppelganger police officer of Hyakki Academy Island, tries to protect the peace by capturing a teketeke robber.

Class 2-3 enjoys some time at the beach during their summer vacation and Haruaki and Sano learn about youkai births.

A new teacher named Ebisu-sensei, who is a god of fortune, comes to teach at Hyakki Academy for a short time.

Haruaki and some of the kids in Class 2-3 take the train to go shopping but there's something off about the train.

The Night Parade Cultural Festival at Hyakki Academy begins!

Haruaki goes with Tamao to get some equipment for the cultural fair but something goes wrong.

Nyuudou suddenly announces that he's leaving school so Haruaki and the class try to stop him.

Haruaki and his class continue their efforts to get Nyuudou back and Utagawa reveals a secret about herself.

Haruaki and his students continue to do their best to get Nyuudou back.