The world view is a world where humans and demons coexist and oppose each other. The protagonist knows that he is a hybrid demon born of humans and demons, but he does not know his other identity as a demon. He is forced to accept the arrangements of his family because he wants to save his injured classmate. He gradually learns about his identity, but the more he learns, he discovers that things are beyond imagination.
This novel is also followed by a new novel, "The School Journey of Quintuplets Demons in the Human World". The content is slightly different from this one in style, but the basic setting is still the same.
