Wow, I liked this book a lot! It was really unusual. Dragged a bit when the author kept going on about some business details. The trial was confusing a bit due to unfamiliar Japanese legal system but it had the excitement of a Perry Mason book, almost. The best part was the protagonist. Unexpected to say the least. He was quite a discovery! Reminded me of the Devotion of Suspect X by Keigo Higashino. Another unexpectedly fascinating story with an unusual and fascinating protagonist.