The Blu-ray Box set of Kyoukaisenjou no Horizon is slated to have an "all-new bonus animation."

The fourth of Sensei's lessons.

The third of Sensei's lessons.

The second of Sensei's lessons.

The first of Sensei's lessons.

A short introduction to some of the characters of the series.

A short introduction to some of the characters of the series.

A short introduction to some of the characters of the series.

A short introduction to some of the characters of the series.