Season 1

Rei Hitoma accepts a teaching job, only to learn that his students are demi-humans aiming to become human.

Rei learns why Kyoka wants to become a dancer. A mysterious yet familiar girl appears in the classroom.

Isaki stops attending class and refuses to leave her room, until Rei encounters her by chance one night.

Sui learns some unexpected news about Seiko Kizaki, the human she's indebted to, and turns to Rei for help.

Rei ruins his colleague's handkerchief by accident, only to discover that Tobari witnessed the whole thing.

The advanced class gets their final assignments needed to graduate, but one student finds herself struggling.

It's a new school year, and the advanced class has three new students, including a dragon in love with Rei.

Rei meets Neneko's guardian, a powerful witch, and learns the true reason Neneko seeks to be human.

Graduation assignment season is here again, and the advanced class tackles the unique tasks set upon them.

The advanced class decides to throw a surprise graduation ceremony. Sui asks Rei to deliver a letter.

The new assistant homeroom teacher for the advanced class turns out to be a familiar face from Rei's past.

The advanced class goes on a field trip to the nearby convenience store to learn about human society.

Final assignments are here yet again, but it's not only the advanced class that are having trouble with them.