If it was possible, there wouldn't be any star at my rating.
I don't think anyone who has read first Shogun by James Clavel or The thousands autumns of Jacob De Zoet can like this Alan Spence's book.
It's is shallow, the main character is boring, and we don't learn anything interesting about Japan.
I gave up reading after 80 pages, and the only thing said about Japan was "they eat rice and fish for breakfast".
A total disappointment.