"NORN9" tells the story of a boy who meets three girls and nine young men in a world that he reaches after traveling through time and space. The boy embarks on an aerial journey with them. What is the reason for their journey? Where is the destination? And what exactly is this "world"? With all kinds of questions in mind, the ship is moving forward. Towards the end of the story. The future of weaving bonds is about to begin.