June 8, 2013. A man prayed at the crossroads of Akihabara. He was Yuasa one of the victims of the Akihabara killings that occurred five years ago. His abdomen was stabbed , and now also endured the sequelae, he often went to the hospital for review. After the incident, the defendant Kato Chida sent a letter of apology to each victim. Yuasa received the letter and sent a lot of letters to him, but only received one reply.

Yuasa wrote in the letter"can you tell me the real you", and he went to visit him, but was refused. Yuasa did not move Kato. Where is the "real" Kato? We decided to look for the scenery he had seen, the way he had walked, and the voice he had heard. Hoping to come close to him by tracing his memory. Therefore, we embarked on a journey to find the footsteps of Kato.