I met a strange man on the train, Toshio Aikawa. He claimed to be a country teacher, but he kept pestering me about writing detective novels, accusing me that my works would teach bad guys how to kill. Later, he actually confessed that he had killed his daughter in February this year because he read my novel! He described in detail how he used influenza to expose his daughter to the cold outdoors on a snowy night because he suspected that she was not his biological child, causing her to contract the disease and die. This forced me to try to identify the truth in his words...
