As a war rages on between a machine-based empire and a magic-focused empire, a witch and a soldier meet and fall in love. Will their romance bring an end to their nations' conflict?

Living in a fairy tale may seem like a dream, but for this young heroine it is more like a nightmare.

Fuutarou Uesugi is a poor, antisocial ace student who one day meets the rich transfer student Itsuki Nakano. They argue but when Uesugi realizes he is to be her tutor, he tries to get on better terms. While trying to do so he meets four other girls.

A destructive alien who is threatening Earth becomes a schoolteacher whose students are tasked with killing him, even though they adore his fun ways.

A group of high school outcasts get revenge on the students that torment them.