Age: 16 Birthday: July 10th Sign: Cancer Height: 176cm / 5'7ft Weight: 59kg / 130lbs - Izumi Masamune is the protagonist of the story. He is a novelist that goes by the pen name "Izumi Masamune," his same name. He started out his novels in middle school after winning a light novel writing contest. He hopes to get closer to his Younger Step-sister.