Here's what they say on their homepage:
A breath of floral freshness layered with amber and wood, conveying sweetness and femininity in a new, modern language. (shiseido.com)I don't quite agree because I don't smell any flowers... It is very Japanese, I think. It is clear, fresh and reminds me of green tea...
I read that the golden square shape was inspired by Japanese golden room for tea ceremony. That fits quite well to my impression of the scent.
It doesn't last on my skin as long as I hope it would but if I spray it on my hair, it's great because it lasts a whole day... This parfume is not too strong so that it is great for day and night without giving anyone any headache.