The school is a training ground for people who become part of the Fantasy world. Unfortunately, very few people have or types of 'Character', a large majority of people can only become a .

I, Satou, am also one of the . One day, I attracted the attention of a girl bearing the characteristics of a - Ryuugamine Ouko. She is cute as well as nice and courteous, however, she will unexpectedly say "I really want to exterminate human kind" or other similar phrases. I really wish she could change a bit. I am also the childhood friend of a maddening and rebellious - Hikarigaoka Tsubasa, a person who would always bring about trouble. She is a super beautiful girl. Whenever she thinks of something, she will recklessly and thoughtlessly advance forward...

As the person caught in the middle, what should I do?!