Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Modern madness

Although a number of prior reviewers loved this novel, I found it impossible to enjoy, despite an overwhelming desire to like this book. As a martial artist, I couldn't get past the silly plot. Worse yet, the characters, especially the main characters, are far too modern (and Western). Likewise, the dialog was stilted, direct, and unlikely to be spoken by even modern Japanese. If you aren't looking for historical accuracy, you may be happy with the novel.