[Machine Translation] At night I become a monster. Whether I am sleeping, sitting or standing, it comes suddenly in the middle of the night. One day, I became a monster and crept into the school at night to pick up something I had forgotten. I thought there was no one in the classroom at night. But somehow, my classmate Satsuki Yano is there. This is a story about the true self, written by the author of the best-selling coming-of-age novel "Kimi no Pancreas wo Tabetai" (I want to eat your pancreas).