[Machine Translation] A high school girl, Kukai, is on a night train to meet her grandfather. Suddenly, however, a passenger is found dead, and the situation takes a sudden turn. ...... is forced to stop on the way. What will be Kukai's fate? And what is the identity of the mysterious serial killer "Tetsu-Killer"? This is Ayatsuji's first original full-length manga and Sasaki's first real mystery. The shocking conclusion! The special feature of the paperback edition ( Afterword of the paperback edition ) Yukito Ayatsuji ( Commentary ) Arisu Arisugawa