The first volume of the Tetralogy 'The Sea Of Fertility', 'Spring Snow', is a truly wonderful book. Maybe the best word to describe it would be 'beautiful'. The way the author writes (the English translation is very well done) brings you immediately into the world of this book. The way the thoughts and character of Kiyoaki Matsugae, the main character of this book, are described is incredibly realistic, amazing at times and interesting. He soon grows to your heart, which makes the further development of the story and the end even more touching.
After you've read the book there's this empty feeling inside you, not really knowing what to think or to do - it leaves a very strong impression.
I very much enjoyed reading this book, it's wonderful, and you can't do a mistake buying it.